Maximum PC

There are six that I cannot live without:
TrueCrypt http://www.truecrypt.org/
YTD YouTube Downloader & Converter http://www.youtubedownloadersite.com/
Format Factory http://www.formatoz.com/
DVDFlick http://download.cnet.com/DVD-Flick/3000 ... 26515.html
DVDShrink http://www.dvdshrink.org/much_en.php
DVD Fab HD Decrypter http://www.dvdfab.com/dvd-decrypter.htm

My top five would have to be:

*DVD Decrypter (and SmartRipper--both do the same thing)
*DVD Shrink (don't use it much anymore since i store stuff on an external drive now)
*Handbrake
*CCleaner (really does a good job, and it's free--beats the paid programs in many ways)
*PDF Creator (although it does have some toolbars it installs, which I remove--that and MS Office now includes the capabilities of creating PDFs from the Office apps, but it's nice for printing pages from a browser to a PDF for example)

Those are about the top five freebies I use at least weekly, except for Shrink, which I use only rarely, but is still worth mentioning.