PSPad is very handy. It is ready to work immediately without requiring customization. The editor supports many file types and languages, with syntax highlighting. There are macros, clip files and templates to automate repetative tasks. Integrated HEX Editor, Project support, FTP Client, Macro Recorder, File Search/Replace, Code Explorer, Code page conversion... these are just some of the many features that PSPad offers.
Even though this program sounds advanced for you if your not a developer it isn't. I do recomend with this software taking 5-10 minutes to explore it and find out what things do and how-to work them.