Slider little button in OS X

[Marty Knapp]

If you want to make sliders that look however you want (and are the same 
in appearance cross-platform) check out my stack on Rev Online: 
Username: MartyKnapp. The stack is Martys Sliders. The script is 
commented so that you can make changes as you need. You will have to add 
the actual function of the slider yourself. It has the ability to show 
or not show values - positive and/or negative.

For what it's worth.

Marty Knapp