First Time Build (Budget ~$900)

Trying to take advantage of the Black Friday deals, I'm looking at something like this.

Antec Nine Hundred Black Steel ATX Mid Tower Computer Case - Retail
Item #: N82E16811129021
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16822148262]
Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM [/url]
Item #: N82E16822148262

EVGA 896-P3-1260-AR GeForce GTX 260 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLISupported Video Card - Retail
Item #: N82E16814130370

OCZ GameXStream OCZ700GXSSLI 700W ATX12V SLI Certified CrossFire Ready Active PFC Power Supply - Retail
Item #: N82E16817341002

G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-4GBPQ - Retail
Item #: N82E16820231122

EVGA 132-CK-NF78-A1 LGA 775 NVIDIA nForce 780i SLI ATX Intel Motherboard - Retail
Item #: N82E16813188024

Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W Dual-Core Processor Model BX80570E8500 -Retail
Item #: N82E16819115036

Am I overlooking any glaring incompatibilities? Using any shaky products? Forgetting some essential component? I know myself, and I am prone to mistakes like that. Any advice would be appreciated.