IDEA Lua plugin
Here is a Lua language plugin for Intellij's IDEA. I have only tested it with version 5.0.1 and 5.0.2 but it might work with the first 5.0 version as well.
So far it only supports basic lexical and sematic analysis of Lua. I know that not all stupid features of Lua are supported but I will add them when I have some time. I will also add some code completion and refactoring tools when I take some time of from WoW :-)
If you have any questions please e-mail me at .
PS Soon I will add a page about my thoughts about different programming languages (and Lua) here.