Tire rack and Discount Direct both are good resources but with Discount they ship for free and if you buy a wheels and tires with new TPMS the local Discount will reset them and I bet they would do that with a set from Tirerack if you ask nicely. With Tirerack they want you to purchase a $45 reset tool.
I got my Wheels/tires from Discount ($1200) and they matched the Direct site including the $50 on-line discount. Saved me almost $300 from the in-store price.
'12 Focus Red Candy SE Sport 5 spd
'99 Toyota 4Runner Sport
'11 Subaru WRX STI Hatch