I am looking at a similar system, I like the ASUS P8P67 PRO LGA 1155 personally alot of posative reviews on newegg and good reviews on youtube. Only question is how many monitors do you have in your setup and what is t he resolution?
Yes from the looks of it, I too have an unlimited budget for my rig but SLI'd 580's is complete overkill on one monitor no matter what the res. As well as the 2600k being a complete non factor in games over a 2500k.
Yeah with that monitor I hate to say it but 2x580's are extreme overkill atm, You would be better off going with a 2x570 setup or even a single 580 for now with the option to upgrade later. 1 580 gtx will run WoW at over 120 fps, and every game out at over 30 ......with everything turned on and all the way up. With 3d at that res 2x580s would still be overkill. You could even get a 590 gtx for now to hold you over and it be $300 cheaper than SLI'd 580's.
However since you will be using it for photoshop with 15mg pics def keep the 2600k, it will outperform the 2500k in photoshop areas.
Asus WS Revolution for twin 580's in SLI at x16 x16 .... only MoBos w/ NF200 are gonna give ya that. most do x8 x8. read the review here .... not only does it beat the Gigabyte UD7 in every bench bit check out thePower and Temperature page:
Now if ya wanna do twin SLI at x16 x16 plus a dedicated PhysX card at x8, the the Asus Maximus IV Extreme is your baby.
WARNING: Be very careful w/ cooler selection. In most full tower cases, even:
Corsair H50/H70 , Antec Kuhler 620 will hit GFX Card in Slot No 1
Thermalright Silver Arrow won't fit in normal orientation, must rotate 90 degrees
I just finished a build w/ two factory OC'd 560 Ti's (900 MHz). As soon as I get CPU OC dialed in, will try for 1000 MHz whoich seems like everyone before me has been able to do.
Guru3D uses the following games in their test suite, COD-MW, Bad Company 2, Dirt 2, Far Cry 2, Metro 2033, Dawn of Discovery, Crysis Warhead. Total fps (summing fps in each game (@ 1920 x 1200) for the various options in parenthesis (single card / SL or CF) are tabulated below along with their cost in dollars per frame single card - CF or SLI:
22.3 % (SLI) increase in minimum frame rated w/ C6 instead of C8 in Far Cry 2
18% (single card) / 5% (SLI) increase in minimum frame rated w/ C6 instead of C8 in Sawn of war
15% (single card) / 5% (SLI) increase in minimum frame rated w/ C6 instead of C8 in World in Conflict
For $45 or so, or roughly a 2.5% increase in system costs, if ya can improve your SLI performance by 5%, I say go for it.