Good rule of thumb, get the largest hard drives you can afford, get the fastest processor you can afford and accept the fact that your system will be almost completely obsolete in 2 years (No way around that one).
As far as internal hard drives, get one large enough to hold your sound effects and music libraries, stuff that will be constant from project to project, but if you’re working on a client basis I would look into external solutions. While it took them long enough, it looks like Thunderbolt solutions are finally coming down the pipe and those might be a good option. They’re still pricey, but will provide fantastic performance for editing.
As far as editing goes, I wouldn’t bother with time capsule or Apple TV. I would consider a break out box of some sort. Blackmagic has a thunderbolt break out box, but so does AJA and I’ve always been a bigger fan of them. It’s called the io XT, and will allow you to connect your Avid MC6 or Final Cut system to a broadcast monitor.
Richard Sanchez
Los Angeles, CA
“We are the facilitators of our own creative evolution.” – Bill Hicks