Take proper measurements, Jen, and compare them to those on a bike on which the position is set up correctly for you. Usual measurements--as BMMF says, it's as if every other bike, and you find info all over the net what the relevant measurements are. There may not be a previous women-specific sizing thread on here, but that's because it isn't really necessary--look at the many other sizing threads. No need to be too gender-specific--women can have particular preferences just like men, so it really comes down to that.
Take proper measurements, Jen, and compare them to those on a bike on which the position is set up correctly for you. Usual measurements--as BMMF says, it's as if every other bike, and you find info all over the net what the relevant measurements are. There may not be a previous women-specific sizing thread on here, but that's because it isn't really necessary--look at the many other sizing threads. No need to be too gender-specific--women can have particular preferences just like men, so it really comes down to that.
Now size TFU. ;)