Hi Marco,
Glad you like the original A1200 case above a towered A1200, I feel just the same. About upgrading, you can add a PPC/BVision/SCSI inside the original A1200 case. You can also add a wireless network card.
The only thing that my computer is missing is a normal CDRom as I don't want to have any wires sticking out of the computer, but there are some guys who managed to get a normal CDROM player inside the desktop, but I'm not sure how all that will work with the PPC/BVision and heat stuff. It's also possible to add a soundcard on the clockport, but you'll need a small HD than.
Anyway, lots of options, but you'll need to add some tweaks and stuff perhaps.
