SLI Watercooling Questions

[polizei11]

First time poster here but I've been reading all the great posts here while I research my new build. I have never done a water cooling setup before so I have a few questions before I post my water cooling setup.

My presumptive parts build includes:

CPU: Q6600
GPU: EVGA 8800 GTS (G92) x2

If I can build a water cooling setup for these parts, I will overclock the cpu and gpu heavily. If not, I will do what I can with air cooling in my Lian Li V2000B.

My questions include:
1. What additional parts would I need by having 2 GPUs?
I have been looking at GPU blocks and the price is making me want to just buy a single video card.

2. How much more difficult is it to include 2 GPUs in a loop (or a separate loop) in a water cooling setup?

As of today, I have not bought a single part for this new build so I can change anything in it.

If you guys need the information I will post the presumptive water cooling parts list. Thanks for the read and information. Glad to finally post here.

[Fx-53]

You could use gpu-only blocks and big ramsinks instead of full block cards(I'm assuming they still make them for modern cards, I'm not up-to-date on the newest blocks out).

The DDC or MCP655(d5) is still the go-to 12v pump I believe. I like Dangerden stuff myself, but I just picked up a fuzion block to try(got a good deal).

With multiple GPU setups, my personal opinion is to go for two seperate loops. I'd rather have two loops than run 3 or 4 blocks in one loop. GPU blocks are very restrictive anyway, and my understanding is those cards your looking at are very hot. As far as I'm concerned, two 120.3 radiators are the way to go. You'll be able to throttle back the fans, and still wont have the system overloaded. I'd rather over-do than under-do.

As far as SLI with blocks, a lot of them now are built to line up and be in SLI. The have a flow port that can be changed from top to bottom easily, and one will ouput down to the second card and the second will oupt to the radiator(or next component in the loop). Think of the way a cpu-NB works.