XHTML/CSS templates for developers

Hi all, I was curious if anyone could provide some insight on tools which allow developers who strictly focus on server-side programming and not UI, to quickly implement XHTML/HTML templates with proper div placement. Drag and drop would be preferable. I'm currently working on a project which no design was thrown at me. I have since hired a designer who's going to take everything I hand to him and CSS it and add the right touches to it to make it a deliverable project. Other than that, I'd like to spend the least amount of time designing, but have the layout prepared for my designer so he can integrate his work with ease. Thank you kindly for any insight. - sf