I'm in the market for the PPC bit... I could always store it for you...
Turn the A1200-T on the side to make a desktop? That would be the easiest way - or dependant upon your hardware you could put it in place next to your main PC and then use some kind of KVM for it (again if you have a scandoubler or another device cable of outputting to your monitor).
If you wanted a proper desktop then that's going to cost additional money which may be frowned upon by the Mrs!