TweenFilterLite extends the extremely lightweight (about 2k), powerful TweenLite "core" class, adding the ability to tween filters (like blurs, glows, drop shadows, bevels, etc.) as well as image effects like contrast, colorization, brightness, saturation, hue, and threshold (combined size: about 5k).

download: http://blog.greensock.com/tweenfilterliteas3/

Also as2 version: http://www.greensock.com/ActionScript/TweenFilterLite/

If you haven't used tweenLite before take a quick glance at: http://www.tweenlite.com