What is PowerTab??

PowerTab is an excellent program for creating, playing, and printing tabs. It has full notation and MIDI support so you can actually HEAR the tab that you are playing! 

You may download it for FREE from their official website! 
http://www.power-tab.net/

You may read a tutorial about how to use PowerTab at:
http://www.deathwarp.com/
(Under the 'FAQs" Link)