Never ever go with 4 x 1 gigs of memory if you can help it. Do you really want all those sticks of memory stuck side by side producing all that heat? Not to mention it makes it a pain in the arse to over clock. And 1066 is a waste unless you plan on going for a super high over clock...which by the looks of your choice of heatsink we know that's not going to happen.
Take this cpu down below and move up your fsb to (10.5 x 333) and run it at 3.5GHz @ 1333 fsb if you choose to o/c. It's a simple yet effective o/c and is very doable with the cpu/hs/mobo and ram in this build.
http://www.newegg.com/Product/Product.aspx?Item=N82E168... <=== more pics, specs, and customer reviews of the case used in this build
http://www.newegg.com/Product/Product.aspx?Item=N82E168... <=== more pics, specs, and customer reviews of the mobo used in this build
http://www.newegg.com/Product/Product.aspx?Item=N82E168... <=== more pics, specs and customer reviews of the cpu used in this build
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http://www.ewiz.com/detail.php?name=CA-ANTE300 $48.45
Antec Three Hundred No PS Mid Tower Gamer Case (Black)
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $69.99
OCZ Fatal1ty OCZ550FTY 550W ATX12V / EPS12V SLI Ready CrossFire Ready Modular Active PFC Power Supply - Retail
Free 4GB flash drive with purchase, ends 4/30
http://www.ewiz.com/detail.php?name=MB-43-UD3L $79.99 after rebate Free Ground Shipping
GIGABYTE GA-EP43-UD3L Core 2 Quad/ Intel P43/ DDR2/ A&GbE/ ATX Motherboard
http://www.ewiz.com/detail.php?name=E7400 $106.75
Intel Core 2 Duo E7400 2.8GHz 1066MHz 3M LGA775 CPU, OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $29.99 ($19.99 after $10.00 Mail-In Rebate)
Sunbeam CR-CCTF92-4 92mm Core-Contact Freezer CPU Cooler W/TX-2 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $189.99 ($159.99 after $30.00 Mail-In Rebate)
MSI N260GTX-T2D896-OCv2 GeForce GTX 260 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
OC Edition overclocked at 655MHz
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $40.99
G.SKILL HK 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $74.99 Free Shipping*
Western Digital Caviar Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s Hard Drive - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $24.99 Free Shipping*
LG Black 22X (CAV) DVD+R 8X DVD+RW 16X DVD+R DL 22X (CAV) DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA 22X DVD±R DVD Burner - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $169.99 ($149.99 after $20.00 Mail-In Rebate) Free Shipping*
ASUS VW224U Black 22" 2ms(GTG) Widescreen LCD Monitor w/ HDCP Support 300 cd/m2 1000:1 (ASCR 5000:1) Built in Speakers - Retail
Total: $911.11 *not including shipping | $851.11 w/rebates
*Did you need an os? If so, change that vid card up above to a gts 250 1gig to make your budget
http://www.newegg.com/Product/Product.aspx?Item=N82E168... $99.99 Free Shipping*
Microsoft Windows Vista Home Premium SP1 64-bit for System Builders - OEM