Image Size

yes you can use photobucket if you wish. I think google has a app thats free (can't think of the name of it right now) that will re-size them if you wish also. I usually crop the picture to show only the coin, then I will re-size it to fit on the forum. Just cropping all the other areas out will knock out a large amount of the size if you are showing more than just the coin in the pictures. You can use photoshop or even paint to re-size

I like Photoscape as you can it to any size, along with being able to crop roundly, among other great features.

There is also Gimp.

I like Gimp but some would say the learning curve is a bit steep. But for simple crop, resize and sharpen, its pretty easy.