I'm 5'2" and I would say 44 to 49 cm is a good bet. trek 1000s should be in that range and can also be WSD. I remember trying out a 1000 and a pilot 1.2 and thinking that the fit was good. i've learned a lot about fit since then but the ride felt pretty good and was what really got me into thinking about road bikes.

I swear everywhere I go i hear that Jill is the one to speak with.