Darryl
Not sure what your looking for, but I will give it a try.
You mentioned that you might want to sell off some street coins.
To us I think this mean common silver coins, that mostly sell for
the value of the silver.
Common silver coins at the current silver price, may sell for 10 to 14 times face. This means that $100.00 face will bring you $1000.00 to $1400.00. The reason there is a difference in price will depend on where you sell them. You will get a different price depending on the size of the market your in, more competition the better price you will get. Also the price will vary from coin shops, pawn shops or online.
For us to really be able to help you, we will need more specific information. Also photos that show the details of the coin.
Most modern digital camera's can produce a good enough picture, you just have to practice. Good lighting seems to be the key to a good picture. I think by putting good lights from two different directions, then either use a tripod or keeping the camera as still as possible so the image is in good focus.
After getting the picture I use the program picasa3 (recommended to me from this site) to crop the picture so that just the coin is shown. This program will also let you re-size the picture to get the 90kb or less so that you can post on here. Will need pictures of obverse(front) and reverse (back).
I would suggest you take one series at a time. For example
Morgan dollars or
Mercury dimes. Tell how many you have and break them down by date and mint mark. Once we know what you have we can give more advice. For example with
Mercury dimes tell us how many 1916's, 1916 D's and 1916 S's, 1917's, 1917 D's ....etc.
Once we know what you have we can suggests what to take pics of.
Here is link's to online price guide and photo grade site.
http://www.numismedia.com/fmv/fmv.shtmlhttp://www.pcgs.com/Photograde/