Grant Skinner is releasing his complex Class, TextFlowPro, free for all to take advantage of.  TextFlowPro enables you to flow a series of text fields together so that they act as a single text container, and still allow users to select, edit, and copy/paste text between the textfields.

Check out this class, AS3 SoundManager, created by Matt Przybylski which contains a whole load of methods that make adding sounds to your AS3 projects super simple. It also supports sound fading of your sound objects.