Ooo...I think I should keep tabs on this thread as I'm leaning the same way.
I checked out the White Industries sight. I would spend 150 on a hub if I picked up the rest of the set up for cheap. It's all about thinking ahead.

Actually, I finally got some time on the track and now want to commute fixed, but don't dare to on the 23cc tyres and am too lazy/frame tolerance restricted to swap out tyres.