What would be a good car for me to get (USED, $5000 budget)?

I am a busboy in a New York City restaurant that my dad owns, and he pays me 50 dollars each day I work. I work three times a week. I have about 500 dollars as of yesterday and I will receive 550 tomorrow (day off today). If I plan to get a car in my senior year (2012-2013 school year), and I have around 5000 dollars by the time according to specific calculations, combined with 1500 I have in the bank now, what kind of car would be good for me to get (i.e. something durable even with 100,000 miles on it that will last me a good year or two) that's around that price? Please give some suggestions. Thanks!