Do you know of a way to indent a script automatically? I currently use Notepad++ and also have Komodo IDE installed (but would happily use another editor that can indent automatically).

Komodo has brilliant auto-indent features. Open preferences and select "indentation" to check out the global and per language indentation settings like (quoted from komodo docs):

"Smart Indent: Komodo automatically anticipates logical indentation points, based on language cues (such as open braces)."

"Auto-adjust closing braces: Komodo automatically aligns closing braces with corresponding opening braces."

"Show indentation guides: Select to display indentation markers (grey vertical lines). An indentation marker is displayed every time the number of spaces on the left margin equals the value specified in the Number of spaces per indent field."

This works great with prefs > smart editing > enable soft characters ("Enable soft characters turns on language-specific autocompletion for brackets, braces and other delimiters. The highlighted closing character is inserted after the cursor and can be “typed over”.")