Ok so I've been really bored recently and have been pondering the idea of doing a clean install of Snow Leopard. What I was thinking of doing to make this easier, was creating a new partition to do a clean install of Snow Leopard then migrate over my users folder so I can keep my applications and data. I wanted to do this because I know doing a clean install would be a good idea to get rid of useless crap, and speedup my mac, but the other reason is that my first macbook pro 2009 came with Leopard. I then upgraded to Snow Leopard, and transfered the disk over to my current macbook pro 2010, giving the 2009 to my brother. Anyways, I feel there is still useless data from Leopard left over, which is why I wanted to start fresh. My biggest concern is erasing the startup disk. I'm planning to make the new partition the startup disk once everything is transfered over and I erase the original one but how do I do this without encountering problems? Also, how do I copy over my users folder to the new partition without having permissions errors? How does the migration assistant work? I will already have my current Mac OSX partition cloned in case of a mishap from all this.