New Build opinions please

Ok...I messed up my first post here so I'm going to try again.

I am building an 80% video editing 15% gaming computer for my first time building anything. I was hoping to get some general and specific advice on my proposed build. These are all links to newegg......


Antec Nine Hundred Black Steel ATX Mid Tower Computer Case

ASUS P5Q-E LGA 775 Intel P45 ATX Intel Motherboard

EVGA 512-P3-N971-TR GeForce 9800 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card

PFC Power Supply CORSAIR CMPSU-750TX 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC

Intel Core 2 Quad Q9650 3.0GHz LGA 775 95W Quad-Core Processor Model BX80569Q9650

mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory

(1)Seagate Barracuda 7200.11 ST3750330AS 750GB 7200 RPM SATA 3.0Gb/s Hard Drive

(2)Seagate Barracuda 7200.11 ST3750330AS 750GB 7200 RPM SATA 3.0Gb/s Hard Drive

SAMSUNG 22X DVD Burner Black SATA Model SH-S223F - OEM


Subtotal: $1,370.90


I would greatly appreciate any help.

Tony