I have a quick question regarding Time Machine Back-Ups and OS X reinstall and such. I have a MBA and the Leopard Install Disks. I recently bought a WD My Book to use with Time Machine to do a complete back up my abundantly full hard drive, which I completed last night ( all 80 gigs). The problem I am having is that I am afraid that if I do an Erase and Install of OS X I will lose all my 3rd party apps. I recently moved home from college, and have lost ALL of my disks and related paperwork/prod keys/etc. Would it be possible to use Migration Assistant or some other such program to pull all my apps back to a new OS X, or am I just SOL?