Along side my new G5, I have a G4 Cube 450MHz w/ 1GB ram that I got off ebay... I was really impressed with how it all fit together... and w/ slight modification, I even managed to put in a QE-capable video card... No, I didn't have to relocate anything, just snapped the plastic casing off of a connector so that the board that 'must be relocated' can sit at a slight angle... I was surprised at how expandable it was given it's size... I think if apple reworked that design a bit, maybe threw in a low-speed fan and in turn decreased the size of the heat sink, the cube design could be a very nice, fairly extendable system.
I also noticed that the AGP slot in the cube is actually a riser board attached to a standard PCI slot... Possible to have headless cube w/ some PCI card sticking out the side? (if you don't mind keeping the core out of it's beautiful case...)
a bit of background info:
I had been a PC user all my life, and since OS X 10.0 came out I had really liked the UI... w/ 10.2 I really really wanted one, but couldn't afford it... but a couple months ago I finally gave in and bid on a Cube on EBay... I was instantly hooked on everything apple as soon as I got it (and upgraded the RAM, fixed some small other problems) and ended up taking out an apple loan and ordering the "low end" 1.6GHz G5, which is REALLY nice... And now, my PC has been thrown in the closet... I might eventually turn it into a fileserver, or might salvage it for parts... one thing is for sure... other than to maybe install Darwin on it and use it as a server, I won't be hooking my monitor/keyboard back up to it again...
Okay, I'm done rambling now...
okay, so I'm not...
Also wanted to throw in that only Apple could make a system crash look cool... the pictures of kernel panics I've seen had me doing a double take... kernel panic, but the system still manages to darken the screen and display a window saying you need to restart... hella better than BSOD