Anyone ever watercool an AN8-32x?

Anyone ever watercool an AN8-32x? (need block advice)

I plan on upgrading my cooling and cooling both of my graphics cards. Everything I have in my sig is up to date, but the thing is what GPU will fit in between my pci-express slots?

pic of my mobo

2 7600GT in SLI on my mobo

Thanks in advance, but if the blocks are like $100+ a piece then I may drop SLI and pick up a 7900GT instead (8800s are a hell no from me, wait till they drop a LOT more)

I did a quick google search I can up with Alphacool NexXxoS GP3X-N Geforce 7600 Waterblock it doesnt seam liek there are manny Blocks for those cards =( I think selling the 2 of them and pickin up a 7900gto would be a better idea .