I Just Cant Decide What I Really Want To Collect...

I would go with the Kennedys. They are affordable on any budget. There are about 150 or so. That's not never ending. That includes the Mint states, proofs and silver proofs. The least expensive is about $2.00 and the most expensive is around $70.00. And only one at $70.00. The majority are only a few dollars.
No one can tell you if a certain coin or set is going to be profitable.
How to manage your money: Sorry I have to leave that up to one of the other members to advise you on.
What makes collecting fun to you? The hunt? The research? Holding a coin? Touching a coin?. Only you can answer that question.
I also might suggest a 20th Century Type Set. Only about 30 or so coins. Very, very do-able and affordable. That way you will be looking for several different coins and as you research each one, you will learn more and will probably be able to better decide which of those coins you would like to complete a set of later. And so what if they are low grade. That's ok for now. You can always upgrade your set later.
You seem to be a little bit "hyper" and impatient. (No offense). But in this hobby you need to learn patience. It's not easy, but you'll come out way ahead in the short and long term if you learn that.
I do admire the enthusiasm and "fire" you have though. Fortunately you came to the right place for answers. Here. There will be several people responding to you offering their insights and suggestions. There are some really nice and funny people here who want to be of assistance. I am going to subscribe to this thread and follow it in order to help further if needed. Good Luck. You're going to do just fine.

Cas,

My humble opinion; Collect Morgans. Really, you should be collecting what you like. However, the Morgan dollar series is so diverse that you could find an endless number of ways to collect these. The Morgan series, as it pertains to numismatics, has been covered relentlessly. They are relatively cheap also for such high grade coins of the era. I won't go into the reasons behind their 'grain of sand' availability, but it is a fact that they are very available in almost all grades for relatively cheap prices. You should have no problems finding slabbed (NGC/PCGS) MS60 to MS64 common date/mint issues for anywhere from $35 apiece to $65.

If you are looking to buy coins as an investment (not bullion, but 'rare' coins) then there are quite a few books on the subject that you should look into. Do your research. If you are collecting for the enjoyment of it than collect however you want as long as it is fun for you.

I'm 31 and also a full time student. And a dad to one and we have one on the way. I manage my money by allowing myself a certain amount to spend a week. Sometimes I'll break that amount into a few chunks so I can buy a new coin every other day or so. This way I get my fix and I don't overspend. What makes collecting fun and worthwhile for me is a couple of things. First, I always try to appreciate the coins that I already do have. Too often I've been so caught up in chasing new coins that I forget about the ones sitting nice and neatly in my safe. It's fun to go through the ones I don't look at every day and appreciate them all over again as if it is the first day I brought them home.

Second, it's comforting to know that I will someday leave these coins to my children and therefore will be passing down something of value. I've learned to learn by the mistakes of others. I've talked to too many dealers about customers of theirs who's relative has passed and has left a bunch of 'junk' coins or a pickup truck bed full of 'colorized' State Quarters. I've learned to buy the nicest condition coins that you can reasonably afford. I put myself in the shoes of a dealer who may one day be appraising my collection for my next of kin. The question I ask myself is if a knowledgable dealer would even want the coins and would that dealer offer a nice sum for the collection.

Get yourself a nice Whitman 20th Century Type album and have some fun! The album will run you around 30 dollars, but you may have to special order it. Whitman also makes a folder, but I would not reccomend you keep coins in there for long because the folder will damage them.

As far as budget goes, I would have to request way too much personal information to provide you with specific reccomendations but I can give you some general ideas:

1. First things first, how much do you spend on housing, tuition, food, car, gas, insurance and such? Take that and subtract from your $250 per month and you have your disposable income.

2. How much of that do you spend on parties, clothes and other social activities?

3. What is your living arrangements? If you are in a dorm or other shared arrangement, I highly reccomend you either get a safe or a Safety Deposit Box at a bank. The SDB is probably your safest bet in a dorm type deal. If you live with family or by yourself, a safe is a decent bet. Safes can be quite expensive depending on what your exact requirements are. Just remember, do not advertise your hobby to anyone who might have the slightest inclination to steal it or tell others.

4. Eisenhower dollars might be a decent play for the future. People are just recently starting to research them and pick out different varieties and such. I do not think they will reach the levels of the Morgans but I think there is considerable room for growth. (JUST MY OPINION)

Get a book, or go online to a website that shows pictures of different coins (like here), and look around to see if there is one specific design that you like. I saw a picture of an Indian Head cent; now I constantly buy them to put in my collection.

My drive for roll searching is that you never know what you'll find. It's like gambling, only you don't lose money . And it can be rewarding. Lots of things can be found in a roll of coins.

Roll hunt for MS65s. It seems to be what you're asking. The reason for this is you're still very young and the coins you find now are going to be in demand in 20 years. You'll be able to say the coin is still with its original owner and minty as heck!

Maybe someone can back me up, but it seems you might have more success with modern rolls than individually buying older coins in MS.

I knew who the OP would be when I saw the topic title...not a put down, just that I've seen your posts. I really think you'll have to figure most of this out on your own because you'll end up with as many opinions as there are coins.

I would say, don't worry about buying expensive coins right now.
You are not going to get ANY coins for cheap, that will one day net you a lot of money, most likely. It just ain't gonna happen !

So, I'd get a coin folder or two of a particular denomination that interests you, and begin filling the holes in there. Stick with the cheaper Ultra Modern issues, until your knowledge and experience gets to where you want to be, to then wade into the more Classic coins. And then, armed with wisdom, you'll be able to carefully select and purchase the right coins for the right budget, that will also retain their value well in the future.