Hi Yellowtreble,
I've used an adapted version of Harvard style, basically without author's names in capitals and in bold, in my thesis. I think you can change how the reference title is presented in your bibliography in the options for editing output style in Endnote (Edit - Output Styles - Edit "Selected Style") - there's a section under Bibliography called 'Title Capitalization' and you can select whether you want the titles to appear as entered into Endnote, or with headline style or sentence style capitalization. I hope that helps!