What you need is a full height AT tower.
I have one that I was thinking of towering my A500
in before I sold the A500.
Its an 11 bay with 300 watt PSU and stands about 36
inchs or so tall. The A500 MoBo would fit nicely.
To bad both of you are so far away from me. I'll never
use it and I would let it go for just a few dollars.
Anyway.. thats the way to go..Full size AT tower.
Plenty of room for everything.