It'll be surely possible to mount a monitor on a wall, too. I'd suggest something from Omnimount to help you attach a monitor to a wall - I'm sure they'd be able to give good advice on mounting a computer to the wall too.
I did photography for my brother at a bodybuilding competition. Got some awesome shots that he can keep forever and also got some shots which I'll probably send off to magazines and make a fair amount of money off.