I would like to know if I can use an 8 GB USB disk, reformatted to Mac OS Extended (Journaled) to install Mac OS X. I have Leopard, and I love it, but I just want to see if it'll work. What I think I'll have to do is... 1. Reformat the 8GB USB to mac OS Extended (Journaled) 2. Insert the install DVD 2. Install Tiger on the connected USB 3. Boot from it. Can I do this? I have to Tiger install DVD.