The usefulness of this iMac bag seems pretty limited, but it's a great idea and a cool design, so whatevs. Made by some French guys, the timbags are big enough to hold a 17-, 20-, or 23-inch iMac and they cost $200 to $500, give or take. They are specially reinforced to ensure things don't bugger up in transit. Why you would need this, I'm not sure, but it sure is pretty.
Product Page [Timbag]