Change meaning of various multitouch gestures on macbook pro

"Spent some more time looking through google and managed to find one that appears to work exactly the way I want:

http://lifehacker.com/5435445/bettertouchtool-customizes-your-macs-multitouch-gestures

I turned off the default 4-finger swipe handling and was able to add 4-finger up as spaces and 4-finger down as expose. Was also able to define 3-finger click as Command-click (which is what's actually used in FF to open a new tab)."