What is your favorite office software suite? Ours include Open Office, which is a free, open source alternative to Microsoft Office for Windows, OSX, Linux, and Solaris. Read and write office files, and export to PDF. Several variants of OO are out there, which provide custom GUIs, and add other features as well. Sun (now Oracle) offers StarOffice, from which the code base emerged. Try NeoOffice for Mac OSX, or Lotus Symphony for an IBM flavored environment. Go-oo.org offers VBA macro support. There are many others as well, check them out here: OpenOffice Links
Our favorite project management application is OpenProj, which works with Microsoft Project. Merlin for OSX can also import .mpp files. Thoughts, anyone?