I am a poor college student, so when I took on the challenge of saving up for a nice camera I knew this was going to be an ordeal. However, I have saved up about $500. I've borrowed my friends Nikon D90 and think that it is great, but I don't think I can afford that kind of camera. If anyone can help me narrow it down (for under $500) let me know. What I basically want in a camera, is that it can zoom in/focus as well at the D90, and that it's compatible with lots of lenses (don't know if this is even something that is universal with cameras), basically I want to save up for new lenses that have different effects etc) As you can see, I clearly don't know much about cameras/photography but it's something I want to learn about, and in order to do that I need a camera. Any suggestions on what to buy? Thanks, any response would be appreciated.