I like Win2PDF from Dane Prarie systems. Sets up a PDF writer that functions like a printer. Before buying/registering, it just sticks an extra page at the end giving the program credits. I believe that the last page goes away after registering, but since I haven't gotten around to it yet, I can't be sure.

Pretty good reproducibility on word processor-to-PDF layout, too. I've occasionally had a couple graphics get messed with, but that was going from WordPerfect. I think it works better with Word, but don't quote me on that.