I would personally steer clear of any korean car. They are just not up to snuff quality-wise (although they are much better than they used to be). For the $ you'd be better off with a used honda civic, nissan sentra/altima, etc. Will save you many headaches and empty-wallet syndrome (thanks to repairs) down the road.
Also, check out consumer reports, edmunds.com, etc for reliability ratings of the various cars you're interested in before you buy.
good luck,
Fausto