There's another new After Effects script on AEScripts.com for manipulating text layers, pt_TextEdit by Paul Tuersley, which lets you search for and edit text layers in an AE project and create & apply text style presets on multiple layers with the click of a few buttons. Paul has provided a nice video walkthrough for this script that's embedded below.
Also, check out the other recent AE text scripts, DecomposeText (to separate words and lines) and Generate AE text layers and distribute in 3D on 3D Text Creator.
Update: also added is TextReverser, which "reverses the direction of selected text layer... a common task required when entering RightToLeft languages." In one demo it seemed to work on Arabic text pasted in from a web page!