My "commuter bike" is a Breezer Villager. My husband set up a website for sharing commute by bike info, here's my page:

http://www.sonic.net/~douglasi/bike/deanna.htm

When the weather's nice and we have plenty of daylight, I'll take my road bike (Raleigh Competition) and do an extended ride (25-35 miles)after work out on the local backroads.