I have the water blocks, they will go on sometime next week. the pump i am using is the CM30P7-1.
Actualy i dont even worry about flow rate with the flow switch i have, there is almost no rectriction there, and what you dont see is that i actually have 4 rads and a weird home made set up fill and bleed system that i came up with. the flow is so high i end up ordering a second reservor (is suking the air from my aqua-comp reservor on the top off my comp back to the system).
By the way Kudos to Abit motherboards, this rig actually shutt down in 1 sec when no fan signal is detected.
Here is the link from where i got the pump:
http://store.hamiltonmarine.com/browse.cfm/4,6387.html