Here is
My LQ blog entry with a list of 100's of systems administration programs for your consideration.
I've seen lots of questions regarding what kind of monitoring/backup/terminal/etc tools are out there that are free and powerful enough to help with the day to day administration of a network. So I'd like to share my list with you.
And of course, there are completely unrelated items as well. But it can't hurt to know about them eh?