I have several setups.
First is my desk where I do homework and set my PB when I am in my room.
Second is the PeeCee setup. My parents use it some, but I run F@H clients and play a few games on it.
The last is my PVR setup, record all my favorite shows and play them back on the TV. Also use the firewire port on it to charge my iPod, disabled the port on XP, it still charges, just doesn't mount.