I've just installed Snow Leopard, Apple's new operating system version 10.6 and it's working very nicely on my quad Intel Mac Pro (Snow Leopard is the first version of OS X that does not support older Power PC Macs). As it is optimised for Intel the speed benefits are apparent as soon as you start using it and it has a number of attractive new features.

There are a few things to watch, however.

I have client reports of simply putting the new Snow Leopard disk in and upgrading. It didn't go well. These Macs have, in some cases, become extremely unstable.