They used to have this:
http://www.digidesign.com/index.cfm?navid=54&itemid=24033&langid=1
It was a free version of pro tools, but it has been discontinued. But there are other BETTER options out there.... and yes, they're free.
Whatever you do, avoid cracked versions (read bootleg) of software, in the long run, they usually end up screwin up your PC
Try this:
http://www.reaper.fm/download.php
Let me know if you have any other question about recording, I've been doing it for four years now.
Hope that helps.