Fuji Finepix 2600 - 2.0MP
I know you already bought one, but here is my .02 on buying a camera (or basically anything else)
It takes great pics for whatever I've needed, and its able to take good shots for 8x10's. I can't remember numbers offhand, but as long as your camera can take pics at a resolution higher than what a certain size requires you are good to go. ex. an 8x10 needs say 1400x1400 pixels. Make sure your camera can do at least that .
I wouldn't go lower than a 2.0MP, but I wouldn't necessarily go higher either. Why pay for more than you are going to need/use? It really depends why you want it. My cousin has a 3.5 or 4.0 MP camera that he paid over $250 more a couple months ago compared to what I paid for mine 2 years ago. I found much better things to do with that $250.
Here is what you need to do. Determine why you want one and what you are using it for. See what you can get a nice 2.0-2.5MP camera for as a starting point. Then check out something in the 3MP range, see how close the price is and compare the outputs of each camera. While the 3MP might take slightly better pictures, you might not really be a huge difference given the (potential) price. If its $100 more, ask yourself if what it does is worth that $100 or would you rather have the camera that suits you fine and spend the money on other things. If it's just for fun why waste the extra money. If its to take pics to show clients, a nicer camera may be in store.
Make sure you learn how to use your camera functions too. Any camera is crap if you don't know how to take pictures properly.
Good luck.