I'm not quite 100% with #27, but we've taken some big steps forward.
I put up the new banner and moved into the two column layout a few days ago. This morning I finished the top nav, including a little re-write of the base code so that Blogger's silly "You're only view posts tagged x" message won't pop up anymore on the Books & Reviews or 30 Before 30.
I love the widget in the sidebar that pulls the book covers straight from my LibraryThing account, though I kind of wish I could make it focus on books I've tagged, rather than any book I've reviewed. But that's work that can be done later.
Next up: culling the labels!