As far as I know, there are no 'recent' designs for custom A1200 cases.
TO convert a PC tower case you need to:
1. rotate the PSU so that the A1200 board can use the whole of the case height.
2. Remodel the back plate so that all the A1200 ports are available
3. Hope that cards via a Mediator still line up, else you'll have to completely re model that also.
-Jar.
