I can’t count the number of times I’ve gone back to the drawing board looking for the perfect text editor nor the number of text editors I’ve tried. If you’re looking for a real text editor I think Ultra Edit will fit your perfectly: http://www.ultraedit.com. It’s column mode feature is unique and very, very useful.
Also, Dreamweaver is NOT a text editor; sorry to all the DW fans. It has the capability to edit text files, but it lacks a number of features that should be available from a text editor. It’s a web editor and IMHO not a very good one at that.