Ok, PDF driver should not matter too much. Currently this firm uses PDF 995, but I've done the same procedure using a full version of Adobe Acrobat Pro as the driver as well. First, set up the PDF driver so that it does not automatically ask for a file name, and then does not automatically show the completed PDF.
Then in Revit, I select the printer (PDF Driver), and always print a selected set of drawings. I make sure that it is creating individual files, and Long names. This makes the Revit print dialog file name to be selective. I shorten THAT name to just the project number, and hit the print. That shortened name is appended, and is used to create the PDF files in whatever default directory the modified PDF driver uses. Then I move the files to where I want them via Windows. I can usually print a 70 sheet set to PDF in under 20 minutes. (It is taking some time for our elevation sheets since our standard is to turn shadows on in those views for "depth") Also, we've found that due to a JPG in our titleblocks, in Revit 2010 we have to print using the Raster Setting, which is a little slower.
Good Luck