HP Compaq Business Desktop dx2420

Adequate CPU, memory and hard drive. Choice of XP Pro or Vista Business now, with promise of free upgrade to Windows7.

Keyboard and mouse take two of the USB ports. I have added 4 ports but still not enough. No firewire port. Poor video features. Shares the system memory memory. No DVI output. No memory expansion without replacing existing chips. 4gb limit. Only one...