I work for a multi-national, and most of the IT guys are gamers/ex-gamers from what I can gather.... 

Anyway, couple of us were discussing an inter-office game. FPS would be great except for the time differences etc.....

So was thinking, is there something similar to Risk available online, that allows a single turn every 24hrs - this way it wont interrupt our productivity, yet give me that great "IN YOUR FACE" feeling when I take out the Australian office ? :)