[Space Man Spiff]

Hey everybody, I'm looking to build a computer for office apps, movie watching, and maybe a little bit of WoW, but I'm happy with low graphics settings so long as the framerate is above 40 FPS.

I'm just building the box; I have keyboard, mouse, monitor (1920x1200), OS.

Price is a major concern. I'm budgeting $450-$550, including tax and shipping.

It's essential that the computer be inaudible when just running office applications.

Here's the build I'm considering:

CPU: AMD Phenom II X4 925 2.8 GHz
Mobo: ASUS M4N68T-M
Memory: G.SKILL Ripjaws Series 2x2GB DDR3 1600
GPU: [GIGABYTE GV-R467ZL-1GI Radeon HD 4670 1GB 128-bit DDR3
HDD : Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA
Optical: LITE-ON CD/DVD Burner - Bulk Black SATA Model
Wireless: GIGABYTE GN-WP01GS PCI Wireless Adapter
Power:OCZ ModXStream Pro OCZ500MXSP 500W
Case: Apex TX-381-C Black Steel Micro ATX Tower

I was fortunate enough to find some deals on Newegg, so it comes to $531, shipped. What do you guys think? Any suggestions?