stopped by the LBS today for various reasons... and while i was in there, they weighed my commuter. total with everything on it including: rack, panniers, light system, underseat bag to carry battery for light system, and the necessary tools and tubes for flats.
total: 50 pounds.
by the way... my battery (5 AH from radio shack) for my lighting system weighed in at 3 1/2 pounds roughly.
i think that's pretty heavy for a commuter. could be wrong though.
The owner looked at me and said "wow, when you get a real road bike... you're going to fly"
just thought i'd share.