Ok... I am using the upgrade to Leopard as an excuse to upgrade my MBP's HD. I am going to get a 250GB drive. My questions are: 1. Will installing a HD myself void my warranty / AppleCare? 2. Will a genius install a HD I buy and give to them (new - still sealed)? 2a. If they will, any idea on how much they will charge for this service? 2b. Also, any idea on how long I would be without my MBP?