Yeah it's pretty easy. The only thing I can think of on Flash drives is they are slower than a conventional hard drive in writing data. Reading it is somewhat slower too. However, M-Audio has the microtrack out that records directly to CF Media flash drives, and there's no problems with that, so you SHOULD be ok, I would figure, but I still wouldn't recommend recording directly onto flash drives. Any external hard drive could work, or hot swappable hard drive. It's just a matter of telling pro tools where to save the data at really, which is done in the first step of setting up a session. I have a 1gb flash drive, which is "fast" for a flash drive, but it cannot compete with my my 150gb raptor in one of my machines or even my 300gb sataII seagate.