I'm 5'7.5'', 30'' inseam. (voted 5'7'').

My road bike is a 54cm WSD Specialized allez vita. Seems to be a good fit, though i do have a pretty short stem on it...and in a perfect world i'd make the top tube 2cm smaller (it's about 53cm).

Also have a 52 cm (men's i suppose) Kona Jake the Snake. top tupe is 54cm. tiny stem on that one too. (I'll go with the 49 next time, thank you very much).