It's tough to build a wheel for both racing and touring even at your weight. I would build a set for commute/touring that you want and will serve your needs then look for a cheap tubular setup for racing. They are out there (I actually have something for sale myself, PM for info). Older tubular wheel sets from 90's road racers can be had for cheap and work very well for CX.

The 105/Ultegra to A23's are a solid choice for a great and reasonable all around wheel set.