As Phil said, a very personal decision - and do only what you feel comfortable doing!
As for myself, my brother and I felt very fortunate that all went as well as it did, and made the decision to pay it forward and do everything we could to raise organ donor awareness. We also have a unique situation that we work together in our family business, so it made it much more of a "story" We were written about in feature article in the local paper. I wrote an editorial for the local Jewish Newspaper, and the transplant center asked us to make a tape which they played at local dialysis centers, telling the story of living donation. Then we both became volunteers for the Sharing Network here in NJ. Thats what we wanted to do - a personal decision.
You have already given an incredible gift!