If you want a camera and not much else, my previous phone was a Samsung SCH-A670 and it served me well ^___^* A lot of people have that phone and it's around $50 with a new plan. The people that have it though, either really hate it or really like it. I really liked it~

I saw really good reviews for the Motorola V323 / V325, but it's over $100. But! If you get a new service online, you can get discounts and rebates. I just got a Samsung T809 (with T-mobile) that usually costs over freaking $300 retail price for about $50 because I ordered it online (on Wirefly.com). Just be careful about online ordering and the sites you get it from. Wirefly is legit

Personally, I'm kind of partial to Samsung phones because they have high quality cameras and features, and are VERY durable xP (hehe~ me being a clutz and all~) But I know that Motorola makes good phones too. Nokia phones tend to interfere with radio waves (or something like that) for some reason, because whenever nokia phones get a call, any sort of stereo speaker at all (car, computer, etc.) goes crazy... whether the speaker is on or not >.<
Good luck finding a phone! Just go out there and do a little bit of research and you'll find out a lot about what you'll really want