OK, I have to admit that I was in *love* with my Cube when I first got it. It looked great, it was fast, I loved the fact that it was quiet, etc.BUT, I had a problem when upgrading from OS 10.0 to 10.1... it wouldn't go. It ran 9.2 and 10.0 fine, but not 10.1. I finally took it into the shop and discovered that it was a motherboard problem, and the shop guy said "yeah, the cubes don't have a great track record." Why? This guy's opinion was that Apple worked hard to cram that much power into a small box - with no fan - and they were pushing some limits in terms of component temps and lifetimes.Anyhoo, just remember to keep your Cube cool.