I would like to upgrade to 1 TB ideally.... I currently have the 320 GB HD in my 2009 13" MBP. It originally came with the 250 GB but I had them install the 320 when I got it. Everyone says the best way (without SL disc) is to attach the new HD (with an external enclosure), and use an app (I can't remember the name) to copy over or image the entire current HD and then just switch them over. I am currently running Lion, don't have my SL disc anymore (I can't find it) but I do have the Leopard install DVD. And I do have current Lion backups with Time Machine on my 1 TB Time Capsule. I don't want to have to mess with reinstalling OS's and having to upgrade again etc. so this sounds the best route for me (plus I can still use the old HD in the external enclosure afterward?). My question is.... Is there a 1 TB HD I can put in this MBP? If not, what is the largest drive I can put in here? And can you suggest a good brand / price? Same for an external enclosure? And can someone tell me the name of the app that will do the image of the HD (I lost which thread that was mentioned in!!) Thanks in advance!