Nnuutt- the used car market is virtually untouched by cash for clunkers. There are plenty of fine used cars for sale for a decent price, you just have to look around.
I send my friends to the GSA website for used G Cars for sale for a great price.
http://www.autoauctions.gsa.gov/index.cfm
You can attend an auction in person, and get a better deal than you can at any local retail dealer. They go for generally below retail, and usually come with remaining factory warranty in many cases. You can find a lot of cars in the $6K price range.
Now, you won't find many Cameros. But you will find nice 2005 Dodge Stratus's for $6K. And many Chevrolet 2004 or 2005 Malibus for that price. Some even quite a bit less. Take a look at the on-line listings, and you get a general idea of the prices. Attend an auction in person, and you can walk away with an even better deal.