Newbie needs help!

[CLLLS]

Hey,
I am very intsretd in getting into multi boxing, so bought some more accounts and iv been searching around this site & varies of posts on forums, but I could find the information im looking for, so can anyone help me with few questions please-
1. what progrem do I need to download to multi-box
2. what does it cost/ or is it free.
3. I read up alot on doing it on multiple computers, is this compulsary or can I run 4 from my 1 computer?.

Thanks(i relise I seem like a newb but just started here & need info's)

[Wilbur]

http://www.dual-boxing.com/forums/in...ard&boardID=37

Check the wiki as well.