Decide what your jobs are, not the titles (Score 1)

The key thing is that you get a voting seat on the board. I like the one suggestion of you being chairman/CTO while the more traditional background goes to the CEO. But maybe you really do want to run the day to day operations, staffing, bills, etc.. I'd think you have more technical work to do if you're starting small. Biggest mistake I ever saw in a startup was starting with a CEO, CFO, etc.. and so on and hasving no actual product.

I'm personally of the mind to hire the CEO as a non-founder and go with an upside down pyramid with the real power in the hands of the founders. But that's me.

Good luck.