Hi All,
I'm looking at watercooling my next (long-overdue!) system build. I'm probably going to go for a passively cooled motherboard so I'll need a watercooling setup to cool the CPU and GPU.

I'm considering the Thermaltake range as the hose connections seem very secure and the kits are good value. I'll probably start off with a Bigwater kit and add a GPU block in the loop. Question is, will the single 12cm radiator be enough to cool a CPU and GPU in series?

If not, I'll probably add a second 12cm radiator at the front of the case (the Aquabay M2 5.25" front-mountable radiator looks possible) but will the pump be enough to cope with two radiators and two blocks?

Do I need a reservoir? What are the technical benefits of having one? The Aquabay M1 has a small radiator and a flow meter (have a google for it) and mounts in two 5.25" bays. Is anyone familiar with this product and if so, will I have space to mount the pump behind the reservoir?

I'm probably going to have a CM Stacker case so using the four bottom bays for a radiator-reservoir-pump arrangement wouldn't be a bad plan.

Any comments/suggestions about the plan so far?

It should still be less than £100 for Pump, 2x12cm radiators, 2xWaterblocks, Reservoir and Flowmeter. Seems like a bargain to me!