Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Netbeans - NetBeans IDE 7.0. Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.
CotEditor - Open Source Plain-Text Editor for OS X
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
Fraise - Fraise is a Powerful Lightweight Editor for Mac OS X Snow Leopard.