I have largely moved from Textmate to Sublime Text 2 for text editing. Among other reasons, Sublime Text is cross platform, and I use Windows at work and a Mac at home. I have also started writing as much as I can in Markdown.

I intended to write a blog post about using Sublime Text as a tool for writing Markdown. However, the inimitable Federico Viticci, of macstories.net, has already written that post, so I will simply refer you there.