Discount Tire on Ebay is offering a $100 rebate on select tires and wheels. It seems that the prices on their Ebay site are marked up a few dollars but you still end up on top with the $100 rebate.
Rebate form: http://dtdoutlet.com/Rebates/DTD_Eba..._0316-0325.pdf
Discount Tire on Ebay: http://stores.ebay.com/Discount-Tire-Direct
I just purchased 4 new Hankook Dynapro ATM RF10 265/75/16 for $615 shipped. Factor in the $100 rebate, and the total is $515, which is $65 less than the price on Discount Tire.com.