Thank you everyone for your much valued responses and the warm welcome.
Theodore (trident), I thought it was very funny that the P.S. in your post really touched on something. The moment I posted that first message, I felt a big sense of relief. I've discussed this with my wife from time to time, but I don't think she truly understands the feeling. Maybe this could be the first step for me. :-)
Al (kbrkr), the "I don't give a crap what you think" idea also hits a point. I'm very confident at home and at work, and I think people would perceive me as a very confident person in general. But the fact is that I know I worry too much about other people's opinions.
Tony and Don, it's always comforting to hear that people with great experience still have some degree of this.
It makes me laugh that when I first tried out the PSR3000 in the store, one of the things I really loved about it was that it was everything I wanted AND due to its built in speakers, I could have the flexibility and ease of taking it someplace (even bought a carrying bag), or just playing in my living room without needing any additional amplification. The intent was there at the time to have people hear it. I think a lot came to a head when Christmas came and went and all the Christmas songs I had been preparing for months were never heard by anyone. Again, I enjoyed every minute of playing them even for myself.
Hopefully I can break through this. We've got a couple of family events coming up at our house in the upcoming months, so the opportunity will certainly be there.