Well then you don't have three then monkey!
Myself and 2 of my brothers have 2 each, it's just the way it worked out. My family comprises of gamers, if you don't play games then we cast you out...
Me - 2 xboxes, DS, PSP, Gamecube, PS2, Dreamcast, Wii, 3 laptops, PC, plus some retro stuff (CD32, Lynx, Genesis etc)
Littleist bro - 2 xboxes, DS, PS2, PC, Laptop
Older little bro - 2 xboxes, PC, Laptop
Dad - xbox, PS2, PC
Big brother - xbox, Laptop
Sister - xbox, PS2, PC, 2 DS's (Nephews)
Mom - DS
The strangest thing about that is my mom plays probably twice as much as anyone else - she's glued to that DS, if you have a female relative that you want to shut up, buy them a DS - expensive but infinitely worth it.
GTA4 free roaming games with that lot can be fun. I do tend to lend out my spare xbox though, like when friends RROD and I have to send it away for them, because the whole procedure is apparently beyond them.