Never heard of KFA2 and I haven't had any experience with tiger direct. But here's the link for those 8800gt fans. Let me know how/if it works out.
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3441351&Sku=G458-8800
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3441351&Sku=G458-8800