However, on that note, the iMac has always been the hardest computer to upgrade. Interestingly, the G5 iMac was an exception to this -- Apple seemed to be expe

However, on that note, the iMac has always been the hardest computer to upgrade. Interestingly, the G5 iMac was an exception to this -- Apple seemed to be experimenting with DIY repair. When the motherboard failed (and in the G5 iMac, this was 'when', not 'if'), Apple would actually send you a new motherboard, a full instruction manual, and the requisite tools to open up the case and replace it. The entire back of the computer simply levered off, granting access to components arranged for easy access. When the Intel iMacs replaced the G5 (using an identical form factor), Apple didn't continue the DIY approach, and the machines were incredibly difficult to service at home. A bit more info: http://support.apple.com/kb/HT1811?viewlocale=en_US http://support.apple.com/kb/HT1811?viewlocale=en_US