I have a cool story I thought I'd share.
I ride a ~20 year old Nishiki road bike to work. Just 3 miles round trip, but it's commuting.
Some of the parts have changed (for example, I put some old 105 brake levers on it), but it's still the original Nishiki frame. The coolest thing is it used to be the bike my brother rode to junior high and high school. It had some time off, but it's back to work getting me back to work. I'm glad we kept it around.
I love bicycles.
[Edited 14 MAY 2009 to include a photo of my commuting beauty!]