I am in a similar situation. But my commute is very short and flat. And I am loathe to have to change in or out of any clothes when I get to my office. Jeans are okay here, but I usually go a little dressier with cotton or light wool dress slacks. I rode to work yesterday in sub-30 temps and learned very quickly that cotton dress pants at those temperatures will not work. I have worn long johns to work in the past, but they quickly become too restrictive and hot in an office environment. Any recommendations for a heavier wool pant or something similar? I think LL Bean and others have flannel-lined chinos that I may give a try.