Ask HN: Resources for CSS templates for DDD (Deverloper with Design Deficiency)

Title pretty much says it all, and given my web app is boot-strapped, free resources would be great. Googling for "free css templates" comes up with a lot of junk and I'm wondering what resources other developers have used.

I have a simple web app with the backend functionality 80% done. I'm using a template right now but just not very happy with it (it's got some hardcoded images to match the colour scheme so changing colours on the header/footer means redoing images too).

I'm looking for a simple and uncluttered design that I can tinker with...one page with simple header, footer with a "Web 2.0" feel to it. Nothing fancy and I can tinker with the CSS to make it work, but i need the basic scaffolding setup.

Any ideas? It's a long weekend in Ontario, Canada and I'd like to use the time firming up the front-end. Thanks!