I threw this rig together over the weekend. My desk just wasn't comfortable and I had always wanted something more prctical so I picked up a lexus seat from my friend at the local salvage yard (didn't cost a dime

) I made the frame out of some scrap wood we had laying around the shop. Base is 2X4 with 3/4" plywood. Console thingy I welded the frame up out of some extra angle steel we had, screwed some 1/2" plywood to it and then covered it all with some auto carpet I picked up at wal mart for $8 a roll (2 rolls). Bought some cheap altec lansing gaming speakers for about 30 bucks at office max and mounted the woofer in the console.
I got an old power supply I had laying around to power the seat and a future CD player. Mounted it to the side of the base, screwed the seat down, screwed my hofmann simpeds down, screwed my monitor down (did a lot of screwing). I made an arm to hold my joystick out of some 2 inch flat bar and a door hinge. It swings out of the way when I get up. It's working out pretty good. Gotta route the wires inside the base, etc.