HP d530c business computer minitower powerful and quiet great for home use

Up for sale is an HP d530c minitower computer business model. What does a business model mean? It means this computer is heavy duty. Heavy and strong case/chassis (easy to upgrade), powerful but quiet fans, heavy duty heatsinks to keep the computer running cool. Many advantages over a standard home computer you buy at the store. The d530c model was sold only to businesses but makes a great computer for home use due to its many advantages. Below are the main specifications. Feel free to contact me for more info.

Pentium 4 (P4) 2.66 ghz processor
512mb DDR dual channel ram
40 gb hard drive
DVD ROM drive
DVD/CDRW combo drive
built in video
built in sound
built in networking
6 USB 2.0 ports
parallel and serial ports
ps/2 ports
Comes preloaded with Windows XP and Microsoft Office (this is for demonstration purposes only. Buyer is responsible for formatting hard drive and installing their own copy of software)

Asking $400 or REASONABLE offers. No lowballers. No trades. Cash only. No delivery. You must pick up in Rowland Heights. The minitower itself is for sale. No keyboard, mouse, or monitor is included. However, I do have extra keyboards, mice, and a 15" LCD monitor that I can include for an extra price. Computer comes with power cable. All other cables are provided by the peripherals you install.