Well I installed H20 a couple weeks ago and just got around to overclocking today.
My rig now:
Armor case
Corsair 620 PSU
Asus P5N32-E Plus 650i
E6600 @ 3.6ghz
Crucial Ballistix Tracer PC6400 4x1gb (1:1 @ 4-4-4-12)
8800GTS 320mb @ 660/927
H20 setup:
Swiftech MCP655-B 12V Industrial Water Cooling Pump
D-TEK Customs Fuzion CPU Water Block
D-TEK Customs Fuzion GFX GPU Water Block / Swiftech MC14 Bga Memory Heatsinks / Swiftech MOSFET sinks
Black Ice Xtreme II Rad (2x120mm) with 4 x120mm Logisys 63CFM fans in push + pull on a rheobus
Swiftech 7/16" tubing and Tygon 1/2" tubing
Tygon 1/2 inch tubing
Swiftech MCRES-MICRO Clear HI-FLOW Water Cooling Reservoir