[kmcd]

> I am a programmer who sucks at marketing

That's the mission critical bug that will kill your business ;)

Read these three books ~many~ times:

-> The Four Steps to the Epiphany by Steve Blank

-> Traction by Gabriel Weinberg

-> No B.S. Direct Marketing by Dan Kennedy

Then split your overall time 50% dev, 50% marketing.

Plan B: keep an eye on the contracting market in your area of expertise ...

Good luck!