OK, so since she IS a computer, Portalās GLaDOS wouldnāt exactly need a rig of her own. If she did, though, itād look exactly like this.
This is the Hammerhead HMR989 from DARWINmachine. And aside from the fact itās in a rather elegant, glowing ācaseā, its key point is that itās not really a PC case at all. Rather, itās a frame for a PCās components to be bolted to, since itās basically an inside-out computer, stuff like the drives, fan etc exposed for the world to see.
Intended for āhardcore gamersā (well, duh), the caseās designer, Matthew Kim, has a ābackground in race car engineeringā, which explains why it looks like the result of a steamy night between a Formula 1 car and a Portal turret.
If youāre interested, thereās one available, and it costsā¦$2,899. Plus shipping.
Hammerhead HMR989 [Darwin, via technabob]