Intel I7 940 (i want to OC it)
EVGA X58 mobo
3x EVGA GTX 470 cards in 3-way sli
9800gt for physx
2x ocz vertex 120gb SSD's in RAID
3x WD 300gb Raptors
Corsair 600t graphite white edition.
Antec Quattro 1000w PSU
Having a 9800GT for PhysX doesn't make much sense here - personally I'd just take it out of this rig. Very few games specifically use PhysX, and it could easily be run on your CPU or on part of 1 GPU. There's not much benefit in 3-way SLI, so I'd have PhysX use one of the GPUs for processing, but not only for PhysX.
I ran 3x470s at one point, and it didn't make a big difference until I bought 3 monitors - one for each GPU.
EK X58 SLI LE Chipset Block
I don't quite understand this, as WCing this will restrict the loop and you won't really get much out of it IMO.
XSPC RS240 Radiator
Swiftech MCR 420-XP Radiator
I'd go for the thicker RX radiators. They work pretty damn well, and 240 + 480 gives you a good amount of rad space with better rads.
10ft PrimoFlex Pro LRT White Tubing -1/2in. ID X 3/4in. OD
6ft PrimoChill Anti-Kink Coils - UV Red
I love this tubing. Unless you like those Anti-Kink Coils just for looks, scrap them. I speak from personal experience when I say those are completely unnecessary; this tubing is solid.
Koolance Drain Valve [13mm, 1/2"]
A fillport is a good idea as well if you can't use the XSPC BayRes fillport. A drain is a good investment though.
Yeah, you don't need kink coils if you are using good tubing. You can make tight bends by immersing tubing in boiling water in the shape you want and then dunking in ice water. Make sure when making bends this way, you have a way to keep the tubing from collapsing ...try using something like this (found in my local Ace Hardware store in the plumbing section for like $3)
@rubix- thanks i will look for some of that and try some because i will have a few places in the loop with some tight turns.
@boiler- ive been debating on the chipset cooling and i think im going to leave it out of the loop for now then.
also on the physx card. i did see a gain in Dirt2 and Dirt3 with it when i had only 2x 470's. my 3rd 470 still hasnt arrived yet so i dont have any benches with the 3-way + physx. but i did gain about 5FPS more with the 9800.