Re: Water cooling... it is really starting to spike my interest-
You're not going to get "sub-zero" temps with a water-cooling setup unless you go with a TEC block like Jakup has. Even then, they're only at that temp at idle. When the processor's under load from a heavy overclock they're around 40-45C--within about 10C of a regular waterblock like I have. They're also a lot more expensive than regular waterblocks as well.
They're not for 1st time watercoolers, and I think he would tell you that himself. You have to prep the motherboard with laquer and grease around the socket to protect it from condensation when you're at idle. Definitely not for the beginner. The risk for damage to your board and components is a lot greater than a standard waterblock.
i7-2700k @ 5.0 GHz
Nvidia GeForce 570 2.5GB Tri-SLI
Asus P67 WS Revolution (Tri-SLI)
OCZ Vertex SSD x 4 (Raid 5)
G.Skill 8GB DDR3 @ 1600MHz
PC Power & Cooling 950W PSU