http://product.half.ebay.com/Counter-Strike-Source_W0QQtgZinfoQQprZ48153873
ebay.com + msn live cashback
http://www.kmart.com/shc/s/p_10151_10104_1630000000197041P?vName=Computers%20&%20Electronics&cName=Software&sName=All%20Software&psid=FROOGLE&sid=KDx20070926x00003a
all of these options...