Good job. You missed my point entirely. My rig is MINI-ITX. Not a tower like the Dell. The whole POINT of the rig is that it is small, unobtrusive, low-power, and most importantly,
fast enough. Something that those Atom set-tops like the Acer Revo are not.
For comparable prices, check out this boutique shop:
http://www.lowcarbonpc.com/
$500 for a crappy Atom rig. My Zacate rig is better, faster, and cheaper. (Than an OEM rig.)
Edit: And for prices, here's how my Zacate rig stacks up.
ASRock E350M1 mobo + CPU........................$110
single 4GB DDR3-1066 CAS7 1.5v RAM..........$40
1TB Seagate 7200.12 SATA HD.....................$60
SATA DVD burner........................................$20
Rosewill mini-ITX cube case + 150W PSU.......$50
Windows 7 HP 64-bit....................................$40
Total..........................................................$320