boat for windsurfer

The time has come to change from windsurfing to sailing.  I am a competent windsurfer at a level where I can sail F7-8's jump waves, back rolls etc etc.  I was OLD RYA level 4-5.

I am now after a dinghy.  I have done a sailing course and played around in a laser which to me seem like a stable bathtub compared to a board (no offence intended to laser sailers)  Although I like the idea of sailing lasers at club level I really fancy and need something a bit more challenging to learn.  I spent years swimming after boards so am happy to fall out lots to learn.  I like the idea of an RS600 ,contender , blaze etc etc.  Unfortunately I don't know enough about various boats to know whet to look for.  It needs to be single handed and trapeze.  any idea's??? Or am I looking to far ahead of myself.  I am 6 ft  13.5 stone  a firefighter so pretty fit. 

Why are you changing from windsurfing? 

What you get sort of depends on why you want to sail?.

Frinstance .. I switched from board to boat cause a) the kids wanted to play, b) there was rarely enough wind for boards to be fun, c) when it's not board planing weather you have somewhere to sit down, d) boats seemed to like beating back up the lake better.

.. but even with the fastest highest performance dinghies. you don't ever get the feeling of raw speed and acceleration that a planing board provides... a single handed trap boat comes close though, if that's what you want.