I bought a totaled 2006 Chevy Cobalt LT back in 2007 for about $2200. All it really needed was a radiator, front fender, front bumper, windshield, and a new airbag (the frame needed to be straightened as well). So altogether I payed $5500 for it which isn't bad for how it turned out. If you were to look at it you would think it was never in an accident.
The only problem I have with it is that the ABS decides to turn off every now and then. Other than that it runs very well, I've even brought to autox events for some laughs. (auto transmission and all-year tires :P)