Thanks for the link WestonP,
Those look like exactly what I need, and while $140.00 might sound like a lot, it's pretty much peanuts compared to (for example) Assos bib-shorts.
Rapha is quality for sure, and while I would prefer to find something similar for less, I'm not thinking that's going to be likely. Hope I'm wrong of course!
I currently wear mountain bike shorts to commute, and in the winter wear leg warmers or wool tights in addition, i.e. underneath. I don't wear standarad road cycling kit because I ride the Metro part way and am concerned about shocking the other passengers with the sight of tight lycra shorts . . . hence the "mountain bike" alternative.
All that said, these Rapha trousers (I guess only the British call pants trousers?) look like they would be excellent for riding and still look conservative enough not to shock the non-cycling Metro train passengers.
Rick / OCRR