If you are able to find any of the '05 Special Value Cavaliers & Sunfires (it will be tough.) The rebates will being the prices down to $7000 for the Cavalier and $7500 for the Sunfire. It appears that GM wants to rid itself of all of the remaining J-cars for good. These J-cars ome with A/C and a CD player with the 1SV trim.
An 2005 SVM trimmed Aveo is going for $8000 after the rebates. I still saw several listed in and around Chicagoland on GM Buypower.