data encryption software

[Forest Stephen]

Hiya

I need some encryption software to do file, folder and hard
drive encryption, with tools like TrueCrypt I can create only
encrypted drives, but I want to encrypt single files and folders
too, I have found some cool software at:

http://www.download.com/Alligator-Data-Guard/3000-2092_4-10857242.html

But it's for 20$! Is there any freeware or open source replacement?

thnx a lot for help
--
Forest Stephen stephe...@netaddress.com