need help with buying a used car?

HI. I've been looking for a small car that can be used to race/travel. Ive focused my searched to bmw, lexus1s300, and a honda Prelude.
these are what i found so far. what do you think i should buy, and why. and also, if anyone can find another car that i would love, i would appreciate a website or picture and specs.

also, are there any other websites that sells cars in my city (san jose) because i dont want to use sites such as ebay because id rather go person to person and meet before buying the car.

here are the cars ive found so far today...

http://sfbay.craigslist.org/sby/cto/997966159.html -01 prelude
http://sfbay.craigslist.org/sby/cto/994773091.html -01 prelude
http://sfbay.craigslist.org/sby/cto/991931706.html -00 prelude
http://sfbay.craigslist.org/sby/ctd/998136134.html -01 bmw 325ci coupe
http://sfbay.craigslist.org/sby/ctd/997898733.html -98 bmw 540I
http://sfbay.craigslist.org/sby/ctd/992845781.html -01 lexus is300 personal fav, but so expensive
http://sfbay.craigslist.org/sby/cto/991241213.html -01 lexus is3000
http://sfbay.craigslist.org/sby/ctd/999239463.html -00 bmw

Im a 20yr old college student, btw