Thanks everyone, I'm obviously entrering a new phase and learning so much frome your advice and questions.
Roger, our previous experience has been on a variety of rented and school use long boards with a centerboard. We will be sailing in light to moderate conditions as we aren't ready for the big time yet. 6 to 14 knots I believe is going to be normal for our area and our maximum range.
I like your advice on looking to the Go 155 as this would provide us both with a new challenge initially and enable us to be more aggressive down the road.