Zip is spot on -- almost worth a sticky (good job!).
Two questions for you on those points:
1. What sort of conduit did you use? Is plumbing pipe the best option? Is there a risk of creating an in-wall pipe organ (especially with an IB sub setup)?
2. Why use a dedicated circuit just for the projector? (I'll do it if it's a good idea, but I would've thought one for the HT gear would be enough.)
CAT6 FTW!
