I finally got Final Cut Studio, and I'm stoked to start using it! I've been told that it is best to assign my scratch disc to an external hard drive. Thinking about this, I have 4 options. Any thoughts? 1- Use a hard drive I have. I already own two 1TB Seagate free agent drives. This one: http://www.amazon.com/Seagate-FreeAgent-Desktop-External-ST310005FDA1E1-RK/dp/B001AHSNB0 2 - Buy a G-tech hard drive. Someone told me they are especially good for software like Final Cut 3 - Construct my own external by purchasing separately a frame and then some memory. I've never done this before, but I've read it's not too hard. 4 - Perhaps investing in a Drobo so that, thinking forward, I can have a way to save the video I take. One additional is that I'll be working with HD and that takes up a lot of memory. It's that detail that has me thinking of investing in a Drobo. thanks!