I'm looking to build an ultra-portable desktop PC unit so I can bring it to work to play CoD on our blazing fast uni network. Can anyone give me opinions on these components?

1. LIAN LI PC-V351B Black Aluminum MicroATX Desktop Computer Case
2. ASUS M4A785-M AM3/AM2+/AM2 AMD 785G HDMI Micro ATX AMD Motherboard
3. AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor HDZ955FBGMBOX
4. CORSAIR XMS2 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model TWIN2X4096-6400C5C
5. MSI N460GTX Hawk GeForce GTX 460 (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

The motherboard has a built-in ATI HD4200 videochip with the ability to crossfire with another ATI videocard you install. But I'm getting the Nvidia vidcard to install in my home PC and installing the 8800GTX from that into this mobile PC. Also, I'll be using a WD Raptor 74GB HDD and Asus DVD drive I have already.