Out of curiosity, what does a PDF creator do that saving/printing a document as PDF does not? I don't do anything professional with PDF's but have been creating them for years that way.
There's a number of additional features, such as re-ordering sheets and removing/adding sheets. Sounds minor, but those have been highly useful when dealing with engineering documents that may be printed from different sources or at different times.
Sartris, have a look at Bluebeam. Not sure if it's also rental-model, and it might be too heavily skewed toward engineering support, but it's the only other product I can think of.