Microsoft Save as PDF or XPS Add-in for Office 2007
I must be daft, I completely missed this free add-in from Microsoft to be able to save as PDF (and XPS) for Office 2007. It's been around for years... duh.
This download allows you to export and save to the PDF and XPS formats in eight 2007 Microsoft Office programs. It also allows you to send as e-mail attachment in the PDF and XPS formats in a subset of these programs.