Got a Mac Laptop? You need...

uControl This preference pane does lots of things, but the reason you have to have it is that when you hold down the function key (or any key or combination you pick) your mouse becomes a scroll wheel in whatever window the cursor is in... pretty cool...

If you have a desktop mac and feel left out, you can use this to turn your mouse into a 2 direction scroll wheel... horizontal scrolling and vertical... even diagonal.

This app rocks