The thermaltake Aquarious GPU Waterblock is universal for ati/nvida. It has three different tube sizes ( 1/4, 3/8, 1/2 ), u can get it from NCIX or pretty much any computer parts site.
Crazy... they should make it neon blue But then again, I'm the weido who thinks the MSN Entertainment Sites are the best designed pages on the Web... so I'm going to like Blue aren't I