I took a little online personality quiz this morning.  Herewith the results:

The Architect (INTP)

You scored 27% I to E, 26% N to S, 62% F to T, and 58% J to P!

You are more introverted than extroverted. You are more intuitive than observant, you are more thinking based than feeling based, and you prefer to go with the flow rather than have a routine. The single word to describe your type is the Architect, which belongs to the larger group of rationals. You wish to sculpt the world around you. Others often find you arrogant, yet you have no desire to direct others, only to inform them. You must know the structure of things, and have a voracious appetite for knowledge. You are very rational in everything you do, and probably consider yourself smarter than most.

As a romantic partner, you can be playful with great energy to get things started, but not quite as good on follow through. You may have a tendency to hurt the more emotional types unintentionally by not sharing your own reactions and feelings as you can get swept up in your own ideas and projects. You want to be appreciated for your ability to respond quickly and to fix problems creatively. You need plenty of time to yourself – therefore your partner must respect your need for independence and originality.

Seems right, although my last Myers-Briggs had me as more of an INTJ.