my father in law received (used) a trek 1000 (older brother of the 1.1, same impeccable Taiwanese quality) and rode it for thousands and thousands of kms without a single problem. He was about 250 lbs, but he usually have racks, fenders, and at least 20 lbs of stuff carried with him. The frame is now in my back yard waiting for a suitable project to bring it back into service.
If you think there is some terrain for which you might want a tire larger than 25mm, just about any modern road bike should be crossed off your list, including the 1.1. However, if you are riding on paved roads 100% of the time, 25mm will be fine. I weigh between 240 and 270 (depending on year) and I have never had trouble with 23mm or 25mm tires.