MacOS: Scroll Magick http://www.edenware.com/scrollmagick.html
Windows: http://www.zdnet.com/pcmag/pctech/content/17/06/ut1706.001.html
Windows: Scroll++ http://www.pointix.com/
Windows: MOUSEHOK.ZIP from Rossen Assenov <rossen_assenov@hotmail.com>
Windows: Flywheel http://www.plannetarium.com/flywheel.htm
