I use EditPadLite and have done for a loong time. It has regex find and replace, is fast and you can tell it to display word wrapped or not, numbered lines or not, font, size, colours, syntax highlighting scheme, all based on file extensions. I have it as my default text editor and for all kinds of other files as well as text. If I want to do major coding, I fire up the IDE and choose from my recent projects, but if I want to quickly edit some xml or a single source file, I double click it and edit it in EditPadLite.