So I had previously mentioned Skype and GoToMeeting as good tools... but here are some other open source projects that I would recommend.

  • For Zipping, screw WinZip, checkout 7-Zip
  • For saving documents to PDF checkout CutePDF Writer (you will need the writer and the converter
  • For Cool Windows tools like Graphical AltTabs, and an enhanced calculator and a unix like window manager, check out XP PowerToys from the windows developers