Thanks for the responses. Didn't see 'em til just now.

Steve - interesting... someone just recommended a beauty dish with grid. If portability and speed become major issues (which they probably will, as the likely scenario will be five minutes or less to shoot without an assistant), I was thinking about a speedlite with a gridspot attached through an umbrella. Don't know how that would look...

jet - cool idea. Wonder if that'd really work...