Another good place to look is EBAY. As always, be careful, and know what you are bidding on, but there are defintely treasures to be found on ebay. What kind of wheels are you looking for? Alot of new wheels out there can still be had for cheap. For example, this wheel I just put on a GN.
These were 18's and were 700 bucks. 17's are even less:
