Sorry to hear about your troubles. I've not had back problems, but I know some guys that have. I definitely empathize.I'm getting started on the "crossover electronics 101" thing for Lima. It's going to be a really good deal, sort of like electronics lab in school but real laid back.
Anyway, as I've been putting together the handouts, I couldn't help but think about how great it would be to have you and/or Martinelli do a seminar on woodworking tips and tricks. That's really just as important if not more so for making a DIY loudspeaker that's a "keeper." After all, they are furnature and "our kind" of speakers are large, so it's very noticable furnature. I can imagine it would be hard to do a seminar on woodworking in a hotel, demonstrations would be difficult. Maybe a slide show with explainations would work. I dunno, but I just thought it would really be great.
What do you think? I'll bet Baker could find another time slot.