I would recommend Komodo edit (http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml http://www.activestate.com/Products/komodo_ide/komodo_edit.m...)

I would recommend Komodo edit (http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml http://www.activestate.com/Products/komodo_ide/komodo_edit.m...) over both Coda and Textmate. Mainly because it does almost everything they do (the only thing that seems to be missing is built in svn support), plus a great VI mode all for free.