Best DSLR on a really tight budget?


Image I captured with Droid Bionic at the opening of a new Cafe in my area. 

I love to snap images. I one went up to Seattle to meet and friend, and spent 4 hours walking around taking images with my phone, so much so that my battery died. I like the images I'm able to get, but their are so many images that I simply can not capture with a small little digital camera. I've wanted to step up to a DSLR for a while, but money is an issue. So, what is the best DSLR for the money.

Current Budget: $500USD (I'm flexible, but not by much).