1366 Motherboard

Rampage III gene?
-its not ATX
-no usb 3.0 sata6gb/s
what about P6X58d-e?

actually OC is not important,
but ram speed?

http://www.newegg.com/Product/Prod [...] -_-Product

ASUS P6X58D-E FTW

Go ASUS, either way - they are much less finicky about ram and integrated controllers than some other boards (ud3r was a bitch).

2 things - You'll need this $9 Clip Support Kit to install the said Zalman cooler on 1366.

Secondly - You won't need any aftermarket cooler if you don't OC. Even a small bump in the clock speed doesn't warrant an aftermarket cooler. Also, you have other cooling options at different price points.

$30 - COOLER MASTER Hyper 212 Plus

$80 - Noctua NH-D14. For very high OC's, the later is very highly recommended. For reasonable OC's the the Hyper 212+ is all you'll need.

Now for SLI, prolly the Sabertooth is a good idea, 'coz the Micro ATX by definition, is gonna run a bit on the hotter side, if the airflow is not adequate. What case do you have in mind?

Cooler - The Zalman 9700 is alright, but you'll have to buy that $9 bracket I linked, to mount it on the 1366 socket.

Case - Personally, I've no experience with NZXT, but I checked out the specs & they looked alright to me. Maybe somebody else who's used one of those can guide you better. However, it costs a whopping $120 incl. shipping. That's a whole lotta dough to shell out for a mid-tower though.

So if you don't have that case already, for $10 extra (incl shipping), you might wanna look at $130 - COOLER MASTER HAF 932 ATX Full Tower

Or, save some money & go with the Mid-Tower younger sibling - COOLER MASTER HAF 922 - $90 + $10 shipping.

Now for the Mobo - The only reason to get the Rampage formula over the Sabertooth/Gene is if you want Tri-SLI. Otherwise, really, the killer looks notwithstanding, it doesn't make much sense to look beyond the Sabertooth. If you want your build to look bada$$, the Gene is a definite option.

In any case, the Formula will downgrade 1600 Mhz RAM to 1333 without OC. The specs definitely are pretty good, but almost identical to the Sabertooth/Gene. It ain't worth the extra $100/$60 IMO. YMMV.