I currently own a late '08 Unibody MBP with the following specs: - 2.8 GHz Intel Core 2 Duo - 4GB 1067 MHz DDR3 RAM memory - 320GB 720rpm HDD Now I want to upgrade my machine: - 8GB 1067 MHz DDR3 RAM memory = $70 from OWC - Mercury 6G SSD 120GB = $200 from OWC - OptiBay enclosure (and use my current HDD as a 2nd SATA HDD for storage) = $100 from MCE So for about $370 I have a system that's insanely fast, right? Well, at least compared to my current system. I still have a few questions before actually doing the upgrade though: (1) First and foremost: would you recommend this upgrade? Are there things you would do differently? (2) How difficult is it to perform an OptiBay installation? (3) Is 120GB large enough for the main drive? What will need to be on there for me to get the most out of the SSD speeds? (just the OS and the apps, or anything else?) (4) What are the things I can put on the second (slower) drive? I assume music, photos, movies and stuff like that, right? (5) I intend to wipe my current HDD and 'start over' on the SSD. Will I need one of those OS X Lion USB keys then? Mind you: I already bought Lion through the App Store. (But lost my Snow Leopard DVD so would have to buy that again ...) Thanks in advance!