HQ is overkill and could also prove to be more difficult for you to edit with only Firewire 800, which is pretty much an iMac limitation. ProRes 422 is perfectly adequate.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los Angeles
http://www.drwfilms.com
POST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW's Business & Marketing and Apple Final Cut Pro forums. Formerly host of the Apple Final Cut Basics, Indie Film & Documentary, and Film History & Appreciations forums.