About the frontwheel:
I run either a 16 spoke Shimano road or 20 spoke American Classic track front wheel with my 175+lbs.
No problems so far.
But then again, I'm a beginner, not a sprinter.
And I've heard that we have one of the smoothest tracks in the world (DLV).
Depending on your budget I'd opt for something more aero for the front. If you want to go cheap most road frontwheels with a hex key skewer will do the trick.

Thomas