This is a nice overview and actual pictures from a team room environment working with XP.
Check it out at: An XP Team Room
"Many newcomers to Extreme Programming wonder what a team room looks like. (For those unfamiliar with Extreme Programming, at the end of the article you will find a quick explanation of the XP terms that I use.) Here are photos and a description of a team room from a 9-month, 5-person project"
(found via smart stuff)
Want another variation? or many more? Here's a good start.