This article is old, but is still full of inspiration. I stumbled across it a few weeks ago when I was turning my dining room into a home office, and it's always neat to see how other people set up their work spaces.
The News in Print selected these in 2008, but the advice in here in still relevant and you can see how people tackle different issues -- everything from small spaces to multiple monitors and how to use your Mac Mini in conjunction with two 50-inch plasma screens. My favorite? Check out the one featuring a MacBook Pro, four Apple Displays and several digital SLR cameras with zoom lenses.
Unplggd also did an article back in 2008 on desk/computer combos, including pairing a MacBook Pro with a SOLo Lounge, a side table that uses solar power to charge your laptop if you have a spare $9,900 in Canadian dollars lying about. TUAW also had a Rig of the Day feature showcasing reader's setups. How have you dealt with the issue of finding a desk that's worthy enough for your Mac? Please share your thoughts (and photos) in the comments!