Acura RSX/TSX...Nissan Sentra SE-R...older BMW 3-series...Mustang or Camaro/Firebird (if your into muscle cars)...
you have to be careful, most of the cars that are affordable to you will fit into the "chic car" category...ie Honda Civic Si, Toyota Corolla S, Mazda 3/Protoge...
Audi S4 (mid 90s..they look similar to new, but have turbo instead of V8)
It will depend on what your taste is.
'93 Eagle Talon Tsi...'96 Monte Carlo SS...Cavalier Z24...these should be well under your budget to leave room for "upgrades"...lots to choose from, just get the one you like inspected before you lay out the cash...
Good luck.