As a long-time fan of HomeSite (though on the Mac I currently dabble in Smultron), to me there's nothing better than source code-focused HTML and CSS editors. There's plenty more out there though, and the smashing folks at Smashing Magazine have put together a comprehensive list of some of the best:
Link: 35 Useful Source Code Editors Reviewed | Developer's Toolbox | Smashing Magazine.
"In the list below we present an overview of 35 established or rather unknown — but useful source code-editors; you’ll probably find “usual suspects” — your favourite editor or the editor you’ve once been working with. But you’ll also find some rather unknown alternatives which are definitely worth considering when choosing an optimal source code editor"
