I've just upgraded my MBP's hard drive to a 60GB solid state drive. I've also ordered an opti-bay enclosure to mount a second hard drive in lieu of my superdrive, but it's taking its sweet time to arrive and I have work to do. I put my old hard drive (the one that's going in the optibay) in an external USB enclosure temporarily so I could still have easy access to all my media files etc. The entire file system and OS X installation is still intact, just on the USB drive now instead of an internal drive. However, this means I'm unable to work on things like audio projects as there's no space to install things like software instruments on my SSD and although they're all existent on my external HDD, pre-created projects can't 'find' them as they expect the drive to be internal....I guess they're looking for the plugins etc in the SSD's home folder rather than the USB drive's home folder.... I hope some of that makes sense!! Basically what I'm wondering is, is there any way to make my pre-created projects work with the files from the USB drive rather than the internal SSD... Would it involve changing the drive identifier to make my MBP think that the USB was in fact a second internal drive? OR could I just boot from the USB drive temporarily? Otherwise I guess the next option would be to re-install the old HDD while I'm working on these projects and then swap back to the SSD once I'm done?? If anyone has any ideas please let me know. Thanks!