Help building my computer

Hi in new to building a computer and i just wanted some help seeing that i know no one that can help.

so far i have bought.

Raidmax SMILODON ATX-612WB No PS Gaming Case (Black)

3 80mm fans

2 120mm fans

and thats it so far next im going to buy

EVGA 132-CK-NF79-A1 LGA 775 NVIDIA nForce 790i Ultra SLI DDR3 ATX Intel Motherboard

ABS Tagan BZ Series BZ1100 1100W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Modular Active PFC Patent Piperock Modular Power Supply

EVGA 01G-P3-1280-AR GeForce GTX 280 1GB 512-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card

OCZ SLI-Ready Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model OCZ2N800SR4GK

VIGOR GAMING CLT-M2I 92mm Thermal Electric CPU Cooler



Seagate Barracuda 7200.10 400GB 3.5" SATA 3.0Gb/s Hard Drive - OEM


but the one thing i cant decide to get is the cpu its between

Intel Core 2 Quad Q9650 3.0GHz LGA 775 95W Quad-Core Processor
or

Intel Core 2 Extreme Processor QX6700 2.66GHz 1066MHz 8MB

thanks for any help

You have a DDR3 motherboard and DDR2 selected as memory.
Go with a 780i and use the DDR2.

I'd pick the Q9650, assuming you can get the Q9650 and the QX6700 for the same price. A Q9650 can easily get to 4Ghz, and it's faster and cooler than the QX6700 at the same clocks.

what resolution is your monitor that you are gaming on? that will impact your decision.

4870x2 is going to beat gtx280 and even beats 2x gtx280 in a lot of stuff. depending on your resolution i would recommend p45 board and a 4870x2 or x38 board (which would allow you to add another one down the road). adding another one will depend on your resolution and how soon. if too far down the road might as well just get the next good card.

get the wd 640gb hdd over the seagate 400gb. at $85 best price per gig you are going to find and is fast as well.

+1 to q9650 over the qx6700. with all of that cooling you are getting are you doing some fat over clock? if trying to go big might want 1066 ram. 800 is usually sufficient but thought i'd mention based on $$ spent elsewhere and cooling selections.