I am going to be upgrading my stock 160GB HDD to a WD Blue 500GB using Time Machine and I want to make sure I have all my eggs accounted for before I begin. At the end of the day I want to have the 160GB drive reformatted to factory settings and then stored all w/o using an external casing. I know this will take extra time but I can't think of another solution w/o buying more accessories. 1. Back up current 160GB HDD w/ Time Machine 2. Reformat 160GB HDD 3. Remove 160GB HDD and install 500GB HDD 4. Format and restore using Time Machine 5. Store 160GB HDD 6. Enjoy Have I left anything out or can this be done a different way w/o excess cost?