The 8500/9500 case is the worst for upgrading. When I'm ready, I am going to gather all the parts needed to max mine out, open it up once, then never open it again. I have an 8600/250 and two beige G3's and they are the nicest old world Macs to work on. The G3/7500/7300/7600/7200 desktop case is also nice.