Exactly Mad Jock! Keef, I used this case to do away with the hi fi stack! I use it with media centre on Windows 7. It's connected to a Virgin box & has a freeview tuner added, so it gets however many channels of rubbish to watch, I've got soemthing like 1000 albums on the hard drive, god knows how many pictures & videos.
My IT pal opened my eyes to the power of media centre & quite honestly, five years on, I couldn't imagine any other set up. I chuckle at the ads for sky+ Rewind and pause live tv? Been doing that for five years.
I'm trying (badly) not to boast, but, set up well, media centre is really a very powerful part of windows.
My own case came from Kustom pc's - just google it, but I think you can pick them up in the usual places, e-buyer, overclockers etc.
Edit to say Mr. Fisher, that assembling a pc is pretty easy I think, provided you follow a few ground rules:
Never force anything, take your time & for god's sake be sure to have the mobo manual to hand, and that you understand the instructions, lest you plug something in where you oughtn't and end up with a bang and a puff of smoke.
In my experience, the toughest job of all is fitting all the little activity light & sensor wires into the right place, but if you make sure you follow the diagrams that are always in motherboard manuals, you'll be fine.
Although I still stand well back the first time I switch on a new build...