Not sure about my gear. I carry a Timbuk2 bag stuffed with a powerbook in a protective sleeve/case, clothes, tool-pouch, ipod, lunch and, during the winter, a nite-rider battery. Probably about 15 lbs. total. Heavier when I forget to charge the NiteRider and have to throw the charger in too. That thing adds at least another pound.
I seem to be in the minority here as far as bike weight. My commuter is actually pretty light, at just under 18 lbs. Get rid of all those extra gears and related hardware and it's not too hard to make a bike light
.
I'm right around 160.
That brings the total to slightly under 200 lbs.
-Trevor