It was fun. I'd practiced enough that the presentation went smoothly and I actually had enough time at the end to expand things out a bit. And the closed question-session part afterwards was quite good; the questions were all asked from curiousity and wanting to understand things rather than only to test me, and I got a sense that the people on my committee felt that I'd done good and important work -- and that they'd thought about it and understood what I'd done.
Am rather sleepy now. Will post more later. Right now, I just want to say "thank you" to all of you who sent well-wishes and encouragement, and to all of you who took time out of your Friday mornings to show up and be supportive. It meant a lot.