I have the late 2008 model of the 15" Unibody MacBook Pro. After reading so many wonderful things about the new Intel X25-m 34 nm SSD drive, I have made up my mind of getting one and using it as the boot drive. I currently have the 5400 RPM, 320 GB HDD. I would like to continue using this drive after I install the SSD. So I am looking for some helpful input on what the best way to achieve this is. I have been reading the forum and came across two possible options. 1. Install the SSD into the default HDD slot. Place the old HDD into an external enclosure. Should I opt for Firewire 400 or USB 2.0 enclosure? Firewire 800 seems too expensive. Also, will Firewire 400 or USB 2.0 be the bottleneck, or will my 5400 RPM HDD be the bottleneck? Should I just spend the extra money and get the Firewire 800 enclosure? If so, which would you recommend? 2. Replace the Superdrive with the HDD, and install the SDD into the default HDD slot, and put the Superdrive into an external enclosure. This option sounds attractive to me because I rarely use the Superdrive, but is this easy to do? I know that it is a SATA connection, but I'm not sure about the power. Can I simply connect the power connected to the Superdrive to the HDD, or do I need to buy some sort of an adapter? Is there a bracket to accommodate the 2.5" HDD so that it does not rattle? So which option would you suggest? Any input would be greatly appreciated. Thanks.