DoB -- since my gear list looks a lot like yours I'd bet my bike fully equipped is in the upper 40s -- maybe even 50. Frankly I'm a little frightened to actually weigh the whole rig. I figure some things are better left unknown.
A heavier bike just means you are tough! Grab that bathroom scale and get a weight (you know, weigh yourself and then pick up the bike for a difference).
And LoFarkas, you can work in your biking clothes? And what about lunch? After I ride in I usually have a big appetite....