Review my ~$500 small office build

Approximate Purchase Date: Next week or so

Budget Range: under $500 after rebate, cheaper if possible

System Usage from Most to Least Important: Surfing the web, word processing & spreadsheets, some flip video making/editing

Parts Not Required: keyboard, mouse, speakers, monitor

Preferred Website(s) for Parts: newegg.com, amazon.com

Country of Origin: USA

Parts Preferences: no preferences, quality/reliable

Overclocking: No

SLI or Crossfire: No

Monitor Resolution: not sure

Additional Comments:
Hello there. I'm looking to build a few PC's for a small non-profit office mainly for web access and office programs.

After checking some of the other builds on the forum here's what I've got (feedback, suggestions, combo deals welcome):

PSU: CORSAIR Builder Series CX430 V2 430W ATX12V v2.3 80 PLUS Certified Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

MB: GIGABYTE GA-A55M-S2V FM1 AMD A55 (Hudson D2) Micro ATX AMD Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

APU: AMD A8-3850 Llano 2.9GHz 4MB L2 Cache Socket FM1 100W Quad-Core Desktop APU AD3850WNGXBOX
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

RAM: ? DDR3- 1600 or 1866? With 64-bit OS I'm guessing you need 4GB min, but with APU probably 1GB for graphics so I need more like 8GB?

HD: Western Digital Caviar Blue WD3200AAKS 320GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

DVD: ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Case: ?

Recommendations on wireless cards would be helpful as well.
Thanks!