any old road frame with horizontal rear drops. Components? Use whatever you want. Its all good. The ONLY component you need to worry about is the rear hub; must be threaded. Odds are, if you found the frame with horizontal drops, the wheel attached to it IS threaded.

I'm not trying to over simplify things; its just that there's nothing mystical about fixed gears (its just a bike without gears); but a lot of folks overly complicate this issue.