Looking for a small upgrade... need some help

Hey everyone, first time user here. I am looking to upgrade my PC soon and would like some advice.

So I currently am running an AMD FX-57 with 2 Gig RAM, and dual SLI 8800 GT OC on a A8N32SLI-Deluxe Mobo

I was to finally make the move to Dual Core and am looking into the Q6600 for is OC'ing ability... I don't want to go extreme but maybe around 3GHz

Since I have the Graphics cards already does anyone have a suggestion on a Mobo with Nvidia SLI that is good for the Q6600...

I am looking to spend around $400 total.... CPU i can get for around $150... let me know what you guys think!! THANKS

i would recommend either a 750i or a 780i board. i don't think you need the performance of a 790i.

eVGA 750i: $180 after shipping and rebate
Q6600 retail, $195
http://www.newegg.com/Product/Prod [...] VGA%2b750i
http://www.newegg.com/Product/Prod [...] 6819115017

or

GIGABYTE GA-M750SLI-DS4 AM2+/AM2 NVIDIA nForce 750a SLI, $154 after shipping
Phenom 9850 BE, $194
http://www.newegg.com/Product/Prod [...] 6819103249
http://www.newegg.com/Product/Prod [...] 6813128339

I'd just forget overclocking, it's pointless with these CPUs and games. Only if you play FSX, otherwise they won't be used at 100% even at stock.