Need advice on 1st new build

I've gotten a lot of great info from reading the forums, but I've never built a system from ground up, so if I could get feedback on a potential build, I'd appreciate it.

My husband thinks it would be less trouble to just get a $800 Dell, but I'm not thrilled with the components at that price point, and I've done a lot of interim upgrades on our old system so don't mind doing the assembly myself. We won't be overclocking or running more than one video card, but I also don't want to be immediately obsolete. For gaming, we play Atlantica and Guild Wars right now, and our current system can't even always handle real-time rendering of the other players.

Other uses are Office Suite and some graphics editing -- Adobe Macromedia suite and basic photo/video editing) I'm looking at the following components:


Antec Three Hundred Black Steel ATX Mid Tower Computer Case

ASUS P5Q LGA 775 Intel P45 ATX Intel Motherboard

SAPPHIRE 100255L Radeon HD 4670512MB 128-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card

Antec earthwatts EA430 430W ATX12V v2.0 80 PLUS Certified Active PFC

Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W Dual-Core

CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)

W/D Caviar Black WD5001AALS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive

LITE-ON 20X DVD±R DVD Burner Black IDE Model DH-20A4P-04

Antec 761345-75120-9 120mm Case Fan

Creative Sound Blaster SB0570 Audigy SE 7.1 Channels PCI Interface Sound Card

Not sure if the video card is overkill for our needs, but I appreciate all advice. I tried to share a wish list for this build at NewEgg but am not finding it on the public list. Does this work?

Thanks -- I wasn't sure if the onboard audio would handle the video rendering, so was tossing in the card just in case. Glad to shave off a few extra dollars!

We're running XP, so I know it won't see all 4GB of RAM -- does it cause any problems to put them in anyway?

Reading the various builds on the forums, I notice a trend towards the P5Q Pro as a standard mobo -- is there a particular reason to select that one over the standard version I listed? There is only a $5.00 difference in the list price on NewEgg.