Just picked up 10.6 today, and am ready to update my Mac Pro(2006) which still has 10.4. I also bought a 1TB drive. So this is what I have: 250 GB internal drive, in two partitions: 32GB for Win XP, and the rest for 10.4 250 GB external drive, in two partitions, one as a clone of the internal mac partition, the other for some extra storage for Windows apps. I want to install the 1TB drive, and put 10.6 on that fresh, and keep is solely for 10.6. Ideally I'd like to make my current 250GB internal drive dedicated to windows. I'm a dad, and have limited chunks of time to do all of this, so I'd like to install 10.6 on the 1TB drive, but for now keep everything else the same, and I'd move documents and apps over to the new drive in small chunks to see what I can get rid of and such. Will I still be able to boot into 10.4? I imagine my wife would want to primarily work in that until I can make sure everything is good on the 10.6 side of things. Will this work? Any tips?