That's the same controller that I've been using from the first day I built this rig of my some 3 plus years ago and I couldn't be happier with it. I've run up to 12 120's off the thing at one time or another...........
Mountain Mods U2 UFO Chassis / Gigabyte EP45T Extreme / Intel Q6600 / Kingston DDR3 1375 2 x 1 gig + Patriot DDR3 1600 2 x 1 gig / Sapphire HD4870 Toxic / Seagate 7200.10 250 / Lite-On SATA DVD RW / OCZ Game XStream 700w / Soyo 24" LCD / Ubuntu 7.10.
Cooling: CPU Loop: Thermochill PA120.3 Radiator / Swiftech MCP655 Pump / Swiftech APOGEE GTZ / "T" Line
GPU Loop: Swiftech MCR120 / Swiftech MCP350 Pump / Swiftech MCW60 / Swiftech Micro Rez.