Softpedia's discounts and giveaways page is back for this year's Christmas. They've got quite a few discounts including some free programs. The only one that really caught my eye was this Returnil giveaway: http://www.softpedia.com/get/Antivirus/Returnil-System-Safe-Pro.shtml
Seems like a nice one, if you like using things like Returnil or Powershadow.