cod4ftwguy :
http://secure.newegg.com/WishList/PublicWishDetail.aspx?WishListNumber=8817034
Do not limit all your shopping to newegg if your on any kind of a budget.
Watch this... I'm about to save you money and improve on that build of yours.
I just saved you
$89.11 with the mobo/cpu combo not to mention it's free shipping. Now do a google search on "ewiz coupons" or "ewiz promo codes" and save another $5 - $15 on that mobo / cpu combo.
http://www.ewiz.com/detail.php?name=MB-EX58U3R Combo Price: $450.87 Free Shipping
GIGABYTE GA-EX58-UD3R Core i7/ Intel X58/ DDR3/ CrossFireX/ A&GbE/ ATX Motherboard
Intel Core i7 Processor i7-920 2.66GHz 8MB LGA1366 CPU, Retail
Now seeing how that case has room for dual gpu's lets add a psu that will push two of those cards if you decide to add another one in the future.
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=10006382 $109.99 ($79.99 after MIR) Free Shipping
PC Power and Cooling SILENCER 750W QUAD S75CF Power Supply Retail
While your at it, it would be shame to use that nice Xigmatek you have in your build and not add any thermal compound. It kind of defeats the purpose.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835154003 $4.99
Tuniq TX-2 Cooling Thermal Compound - Retail
Ok faster RAM never hurt. btw this combo down below is "Free Shipping".
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.199037 Combo Discount: -$7.00 Combo Price: $167.98 $20.00 Mail-In Rebate
OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model OCZ3G1600LV6GK - Retail
Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
And if you want a card that uses less power than that 4890, have a look at the gtx 275.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814133268 $199.99 Free Shipping*
PNY VCGGTX275XPB GeForce GTX 275 896MB 448-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail