New Build For Video & Audio Editing, Heavy Data Use

APPROXIMATE PURCHASE DATE: As soon as today BUDGET RANGE: up to $1500

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Video editing, Music multi-track production, managing large quantities of digital images, large MS Access databases, general web surfing

PREFERRED WEBSITE(S) FOR PARTS: Newegg

PARTS PREFERENCES: Just the good stuff.

OVERCLOCKING: No SLI OR CROSSFIRE: Probably not

MONITOR RESOLUTION: 1600x1200, 1680x1050, or 1920x1080

ADDITIONAL COMMENTS: Building because it's fun and I'm tired of the cheap crap that comes in most pre-packaged PCs. Ability to upgrade is in future is key. Looking also for stability and data security. Need some thoughts on what I've put together.

What I'm looking at:

Processor: Intel Core 2 Duo E8500 3.16 GHz
http://www.newegg.com/Product/Prod [...] 6819115036

Motherboard: Asus P5Q3
http://www.newegg.com/Product/Prod [...] 6813131344

Memory: OCZ Platinum DDR3 1600
http://www.newegg.com/Product/Prod [...] 6820227297

Case: Cooler Master HAF 932
http://www.newegg.com/Product/Prod [...] 6811119160

Hard Drive 1 - OS Only - WD Raptor 74GB 10K RPM
http://www.newegg.com/Product/Prod [...] 6822136033

Hard Drive 2 - Programs Only - WD Caviar Black 640 GB 7200 RPM
http://www.newegg.com/Product/Prod [...] 6822136319

Hard Drive 3 - Data Only - External - WD My Book Home 1TB
http://www.newegg.com/Product/Prod [...] 6822136172

Graphics Card - GIGABYTE GV-N250OC-1GI GeForce GTS 250 1GB 256-bit GDDR3
http://www.newegg.com/Product/Prod [...] 6814125268


My main concern - will the processor / motherboard / RAM array work together as needed?

Pretty clear on the other components, but open to feedback. I know the graphics card and case are slight overkill, but just want to get enough on those fronts to not have to rebuy in a year.

Will run XP SP3 until Windows 7 comes out and gets stable.