Personally, I like a little mobility in my computer so I was just suggesting you go with a portable micro ATX system that would allow you to fully use all those components and also be able to move the computer easier to friends places, or down to your living room to be a home theatre PC when desired.
Buy your parts from
http://www.directcanada.com/ when possible.
Direct Canada is the no-frills arm of NCIX and the prices are usually $10-$40 cheaper than NCIX.com but they ship from the same warehouse in NCIX boxes!
For example:
XFX GeForce 8800 Ultra 612MHZ PCI-E 768MB 2.16GHZ - $674.35 at NCIX
XFX GeForce 8800 Ultra 612MHZ PCI-E 768MB 2.16GHZ - $640.55 at Direct Canada (which is NCIX in the first place!)