I use Dragon Software also.  I speak into a microphone and it types everything you say.  On the down side, when using Dragon, when you are writing a letter or preparing an email, you have to pause to think about what you are writing or saying . It picks up on any pauses etc and sometimes it can shut down because it thinks you are finished.  It’s better suited when you already have something written out in front of you so that you don’t have to think about it.  I would definitely recommend the on-screen keyboard.  It works really well for me.

Other types of AT that I use at the moment include a ‘zapper’ to open/close gates at my home.  I also wear a personal alarm around my neck.  If anything happens to me, I can press that and it will activate the house alarm.  It gives me great peace of mind.