Molly's article lit a fire under me... As a result, I just finished upgrading all of co][nz.org from XHTML Transitional to XHTML Strict. The effort wasn't nearly as tedious as I had anticipated it to be. Many of the issues that came up during the conversion revolved around misuse of 'noscript' tags and missing block level elements within 'form' tags.
You may have noticed that I reformatted a few things while I was upgrading - posts are now preceded by their associated titles and are grouped more visibly by date. I still have a short list of tweaks that I plan on making in the not too distant future, so stay tuned. As always, bug reports and comments are appreciated.