I'm reading that many people recommend backing up my data, then erasing or formatting the drive before installing Leopard. I have disks for all the software I've purchased, but what about iLife? It came with my new Mac when I bought it, but there's no install disks. So how do I put it back on after I install Leopard? I was just planning on backing up the data (/users), but could I also back up the iLife apps and then copy them back after installing Leopard? Or is this the time to upgrade to the new iLife?