External editor with highlight

I disabled “allow editing in record viewer” to enforce a clean boundary between Reference/Archive (in GTD terms) and Project Support, for which I use a different application.

But sometimes I want to highlight passages of a web site before archiving, so I capture it, convert for editing, double click, and come out in Text Edit which doesn’t seem to support highlighting!

Does anybody know a simple rtf editor that has highlighting and can be used with EF?