I've got an entertainment center already (sorry, no pics yet, so bear with me). Underneath the TV component there's at least a 2-2 1/2 feet high, 3 1/2-4 feet wide, and 2 feet deep compartment ...

The IGS system, in turn, relegates server control to outside PS3s while maintaining a connection to the host to keep data updated—not completely unlike the methodology behind folding@home.