I never thought I'd see the day where other users would lust after my beloved Cube!!!!! As a Cube owner and a HUGE fan of the machine, I'll answer a few questions...
First, 800 MHz and 1 GHz upgrade cards specificly for the Cube are currently under production by PowerLogix, and can be ordered from OWC for $599 and $799 respectively. They should SCREAM, as they use the 7455 chip and include their own fan and heatsink. Very nice work indeed!
As for Cube related sites, I HIGHLY recommend
CubeOwner.com. It's got a fantastic FAQ, a large community of users, and an exceptional list serve for Cube related issues. Really a top notch site. In fact, the site's owner, Laurie Duncan, recently spearheaded a move to have a Cube specific combo drive put into production, and it should be available soon. List serve members are also recieving a modest discount on the PowerLogix upgrades.
For those worried about the extra heat, you'll be glad to know that Apple actually built an 80mm x 15mm fan bracket into the Cube's frame, and was kind enough to include a power lead right off of the logic board. It's all set up to take a stock Panaflo fan. Mine isn't even noticeable, and it keeps my 450 and the GeForce3 very cool indeed.
With upgrades like these available, as well as the compatibility of the GeForce3 with the Cubeand all of its potential for QE, it seems to me that the Cube has some life left in it yet. Vive le Cube!
