Bare Bones Software has released version 8.5 of BBEdit, my preferred text editor on the Mac, and what I'm using to type these very words. New features include support for support for Ruby, SQL, and YAML; code folding; HTML Format, Translate and Tidy; and autosave. BBEdit is $199 payware. Upgrades from 8.x are $30. They're $40 for owners of earlier versions. Mac OS X 10.3.9 or later is required.
Kirill Grouchnikov has released the Substance Look-and-Feel 3.0. "The goal of this project is to provide a modern Java look & feel that combines graphic ideas from Windows XP / Vista and MacOS 10.4." That sounds sort of like mixing a truly excellent Cabernet with a quite nice carton of milk. The screen shots I've seen range from almost adequate to truly hideous. New features include blended and saturated themes, animated tab icons, and some other things that demonstrate a truly stunning lack of taste. Java 5 or later is required.