Version 0.9.1 of the K2 WordPress theme has been released. I just upgraded and finished making all my little customizations. It’s a recommended upgrade as it fixes a number of bugs. This release comes almost 2 weeks after K2 0.9 was released.
I can’t wait for the final release of K2. I think we’ll see a number of schemes (themes) released once the final K2 is here. I am gonna buy a CSS book this weekend. Anyone got any suggestions?
(3 votes, average: 4.67 out of 5) 
For some hardcore CSS techniques look at http://www.cssplay.co.uk/index.html. Beware that the code there doesn’t all work on all CSS capable browsers, but it’s pretty well documented which browsers support each technique.
I’ve never had a CSS book … I’ve just learned a bit along the way.