Where can I get OEM running/step boards

Obviously the dealership would rape me if I purchased them from there. Anyone know of a website or something on where I can get the running boards that come on some TBs? Thanx

http://search.ebay.com/trailblazer-running-board_W0QQfkrZ1QQfromZR8 (Running boards)

Saw a slightly used set on ebay for $120

Ya, I actually found a company selling on eBay that is like 20 minutes from my apt. They have all kinds of OEM parts for everykind of vehicle.