Been messing around with the design and various WP plugins.
On the design side, I added a visually interesting divider between posts and broke the sidebar into more intuitive chunks.
For you tag lovers out there, I added the Ultimate Tag Warrior plug in, so now there are tags with every post, a tag nav, and a nifty little Tag Cloud page. As a result of this my nav was getting too long, so I added (slightly tweaked version of) Fancy Archives to make the archive a collapsible menu. Behind the scenes, I also added the awesome WordPress Tiger Administration, which makes my admin tasks much more enjoyable.