Well, honestly I'm spending way too much on building something this extreme, but isn't that the way it goes when you want to build a hot rod?
I don't think there's anywhere that you can just buy a system along these lines pre-built. Not with the liquid cooling set-up AND customizations this will have. TigerDirect was doing some Ultra gaming systems at one time with the Koolance liquid cooling set-up, but even those weren't this cutting-edge or extreme. If anyone knows of a company you can buy something this bad pre-built, post away. Although, I'll bet it's way more expensive than this.
I scoured the Web for deals when I ordered everything. Here's what I basically got everything for (with shipping):
Motherboard: EXPENSIVE because it's cutting edge, and somewhat hard to find --- $275.00
CPU: $600
Memory: $350
Hard Drives: $400
Video Card: $375
Customized FrozenCPU Koolance system: $540
DVD-Rom: $45
Floppy: $15
Illuminated Keyboard: $99
Four Quad Blue LED 80mm Fans: $40
DVD-RW: $300
Mouse: $50
Klipsch ProMedia Speaker system: $350
Grand Total: ~$3500