As just an onlooker to RIBnet forums in the past, I have finally taken the plunge and joined your excellent forum.
In answer to the question about what vessel, I am of course in a rib, what else!
It's an Avon 4.2m. For a pic, look here...
I have to say that, having spent a few hundred hours in it over the last couple of years, I now appreciate it isn't as dry as it might be and I'd prefer a deeper V. At the end of a long day the "wave slaps" get pretty tiring.