Jon, I remember 2 years ago we talked about your leaky roof. Is your house 5000SF or have a lot of fancy gables and separate surfaces? Those estimates sound pretty high for a roof job unless they're talking about replacing structural parts of the framing as well. OR you're talking about the combined cost of the roof and bathroom rehab.
This is a terrible economy we're living in. Many contractors that couldn't return your call previously now are quick to respond when you call for an estimate.
For that amount of $$ I would get 3 more estimates. Don't tell them what the last guy's estimate is. And make sure you compare apples with apples. If one guy is using 5/8 plywood and the other guy is using 3/4 it ain't the same job.
Call me on this if I can explain it to ya in further detail. You do owe me a phone call, so take advantage of it.