@alex: Thanks, be sure to let me know what you think! And if you want to add HTML5 Boilerplate stuff to existing themes, I’ve created this plug-in as well:
http://wordpress.org/extend/plugins/html5-boilerplate/

@Brent: Interesting idea, could serve as a new “option” in the Admin panel, whether to replace the appropriate files or not… Hmm…

@ Dan: Yes, the Theme is in dire need of an update, but I hit a really large, annoying wall when I last tried to update it through WP, and I haven’t built up the energy to try to scale it… I hope to be able to do so soon. In the mean time, the plug-in is up-to-date as of the date of publishing, and I will be keeping an eye on things and trying to keep it up-to-date as much as possible.

Cheers, all,
Atg