Blogger (aka Google) now has something they call dynamic themes. I just discovered them, and if you haven’t yet, they’re essentially your blog on jquery steroids. I actually exported my blog from WordPress and imported it into Blogger just to try it out. I didn’t re-publish all my posts but enough to get the feel of it. If nothing else you should check them out. I wasn’t convinced to switch personally, but they’re a neat gimmick to play with.