I stumbled across a great tool for generating PDF files from Office documents: GhostWord. This handy front end for GhostScript installs itself as a button in Word, Excel, Access, and PowerPoint. Click the button and you'll get a simple dialog. A couple sanity checks, one button and Poof! you've got a PDF file.
You'll need GhostScript 6.0 or higher, plus a PostScript printer driver. Note that I say driver, not a PostScript printer. Install the recommended driver (HP Color LaserJet 4500) and select "File" as its connection port.
I tried one simple resume Word document with moderate formatting, one basic PowerPoint, and one moderately complex Word document with an odd-sized paper setting and a few graphics. GhostWord worked terrific in all cases.
Best of all, it's FREE.