iGetcha.org is a suggested opensource and free software directory for the technological sustainability of nonprofits. It's also a simple, non-techie shortlist to assist organizations with a SOHO.
doPDF is a nice option to send your documents to a pdf printer. What it does is, create a pdf printer and when you print with MS Office or Open Office, you can save the document as a .pdf. iGetcha has only tested doPDF on MS Office and Open Office, so if you are using another application, let the community know that it works there too :) In actuality, Open Office 3.1 already has an "export to pdf" functionality so you only need it when using MS Office ;)