I found the mentor programme a good thing too. When I first registered I joined up and got a mentor who taught me not only basic things but helped me figure out my purpose of being here, what I wanted to do for work, the basics of creating things and where to go to learn more, if that was the path I chose to follow. He introduced me to other people in SL who ran businesses and such to give advice and we became good friends.
I think the mentor programme was a HUGE reason why I continued to use SL for so long, because it gave me a standing and an idea of what to expect and what to shoot for. I think it's even more needed for people who might not have as good an understanding of computers as others as these are the people who are most likely to get confused and therefore not experience everything SL has to offer.