Asked this question at digidesign users conference, but thought I'd throw it out here as well. Okay, I've got an M-Audio fast track pro that I want to start using with my HP windows laptop. The Protools M-Powered Essentials software that came packaged warns not to use the hard drive tied to the OS (the C:/ drive), but digidesign also warns not to use external USB drives. Well that kinda leaves me stuck. These M-Audio boxes are designed to be portable recording interfaces, what kind of hard drive am I supposed to use for recording/playback if I can't use a USB or the built-in? Any of you out there using a Fast Track with M-Powered essentials? Where are you saving your files?