Looking for feedback on i7 860 build

I'm posting this for a friend who is doing his first build. The system is intended for digital audio and video editing work, along with the usual email, web browsing, and MS Office work (no gaming).

The component selections below are his. Other than any general feedback on the build, he is looking for guidance on the mobo and the GPU, particularly the latter. He doesn't want to wait more than a couple of weeks to purchase the parts even though he is aware that the HD 5000 series may impact GPU prices.

APPROXIMATE PURCHASE DATE: Next 2 weeks
BUDGET RANGE: $800 after rebates (excludes case and PSU which he already has)
SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Digital audio and video editing, email, web browsing, etc.
PARTS NOT REQUIRED:
Antec P182 Gun Metal Black 0.8mm cold rolled steel ATX Mid Tower Case
ENERMAX INFINITI EIN650AWT 650W ATX12V / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC PSU
PREFERRED WEBSITE(S) FOR PARTS: newegg
COUNTRY OF ORIGIN: USA
PARTS PREFERENCES: None
OVERCLOCKING: No
SLI OR CROSSFIRE: No
MONITOR RESOLUTION: 1920x1200 (future purchase)

Proposed Build
CPU Intel Core i7 860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core
Mobo GIGABYTE GA-P55-UD4P LGA 1156 Intel P55 ATX
RAM G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
Disk SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5"
Optical SAMSUNG DVD Burner Black SATA Model SH-S223L LightScribe Support
GPU HIS H485QX512P Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16
This build comes in at about $750 after rebates.

The build looks good, but some of the parts are overkill for his intended use. I would use this CPU + motherboard combo instead:

http://www.newegg.com/Product/Comb [...] mbo.246574 (i7 860 + Gigabyte GA-P55-UD3R) $409.98

You could spend an extra $5 and get DDR3 1600 RAM.

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH - Retail $94.99

An overclocked 4850 is overkill for a non gaming build. Even a 4670 would be more than enough.

SAPPHIRE 100295HDMI Radeon HD 4670 512MB 128-bit DDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail $66.99

Thanks to both of you for the feedback. I'll pass your recommendations on to him (I suggested the 4670 as well so maybe he'll be persuaded now).

I forgot to mention that having a quiet machine is reasonably important to him. Is there anything he can change or do to reduce noise (unfortunately he already bought the case and psu). For example, are there fans he should consider and/or passive cooling for the cpu?