ta Oz rider for the numbers, I suspect those tt lengths would be pretty close for my wife. I agree that a LHT would be overkill as I really dont ever see us doing touring with much weight. I tend to take the things we need in my pannier/s so she doesnt need one (makes a real diff if there is lots of climbing as we all know). For this reason I will keep an eye out for a more sport tourer or a cross bike like the Tricross that has similiar geometry to a light tourer, ie not too quick steering and the bb is not too high either (but yes, standover comment well taken)
cheers, we are just starting to get colder, I guess its the opposite for you...