I weigh 215 lbs, dry, and I know exactly what board you need.
I'm not a dealer, but I do own two of his boards so I am definitely biased!
You must use the LiteWave Wing! http://www.usa.globekites.com/index.php?route=product/category&path=72
I own the older version and I use it ALL the time. My son Curtis does to, seen here in the readers gallery and worldwide magazine http://www.iksurfmag.com/issue29/
I took it out twice last week in light winds (7-10 mph) with my 19M S3 D, and had some sweet seshes.
Daves newest version of the LiteWave Wing is even more refined and poppier (is that a word?).
Tell him David Hamlin sent you and maybe he'll give you a good deal.
His Lace Up strap/pad assembly is top notch and they are included, as well as the fins and handle of course and free shipping I think!
Get the biggest one he has. I guarantee you're gonna love it (and not pay through the nose)!