I'm looking to add some external storage to my new 2010 MBP. The Mac has the 5400rpm drive, and I have a specific goal here: I'm looking to increase boot time and general speed with some kind of fast external drive, if that's possible. Looking into this, here's what I've uncovered so far: FW800 is faster than USB or SD, but only SD is bootable and it's quite slow. So, if the speed of OS X booting from the SD is quicker than from the internal HDD, that's one option to speed up boot times. It might also speed up general use. Second, FW800 seems pretty fast, but I don't know how fast compared to the internal HDD. So an external SSD on FW800 could boost general use performance, even if I can't boot from it. Furthermore, I don't know if FW800 is so fast that an external SSD raid would go even faster than one drive? Or, is it even fast enough that SSD would give any gains over a quick HDD? Or is there no external storage option that's quicker than the internal 5400rpm disk? What do you think?