IDK how "nice" of a camera you're willing to buy, but you can get a very impressive point & shoot camera in the $100-$200 range no problem that will take great photos. I'd suggest a Sony Cybershot, or a Canon. Nixon i've heard is decent too.
I have a Sony Cybershot 12MP that I paid $125 and I love it. I just never ever use it anymore since I take all my photos with my Galaxy S3 lol. But I gotta take it out more often. I just don't photograph my tank often anymore because LEDs are a PITA to photograph so I never take the extra initiative to bring my Sony along. Maybe i'll actually do that over the weekend...