I was just told by a recent acquaintance about a trans event on Marlboro MA called First Event. It is a very nicely organized Trans Gender conference in a hotel over the course of several days. They have dozens of seminars and presentations each day on a very wide variety of topics, not sure if this is similar to some of the other events that have been mentioned on the forum in the UK but it was a surprise to me. I can drive to it daily, signed up right away when I saw it. They even have a lot of topics for spouses/family.
Take a look: http://www.firstevent.org. go to the schedule page to see the presentation overviews.
I was very surprised by this being to well organized and catering to cross dressers as well as trans people of all stripes.
Kathy