i need a wireless adapter that's cheap, $20 max preferably around $15. i don't want to do any mail in rebates please.
Deal extreme, they get the parts from manufacturers and sell directly to consumers, so without the middle men you can get good stuff cheap. You just need to wait the sometime 3 weeks for shipping:
http://www.dx.com/c/computers-networking-399/networking-314/network-cards-342?priceFrom=5&priceTo=20&rating=4