Yes, I had already read Myers comments about six weeks ago. I actually did this without referring back his example -- wanted to see if I had picked up enough of CSS and various browser bugs to make it work... ;)
And yes, tables have their use. However, my site probably dies horribly with non-css browsers in the first place. I'm making some basic assumptions about my potential readership. :) So, having the calendar as CSS doesn't hurt in the slightest, where everything else about the site would have broken...
There is already a side discussion about the usefulness of the calendar as it exists. I guess I am likely to dump it at some point, but as I continue to expand my CSS knowledge and familiarity with the guts of WP, this was a great new task.
The only thing I don't like about it is I was unable to get a larger block size around the days, so that those that are links are full-cell-sized like the table version. I think the solution is either to add a span to force the size (a's don't seem to take width/height css), or change to spans exclusively like Myer uses, rather than the list elements I used (a list makes sense, as a month is a structured list... actually, in a sense, I should have used an ol instead of ul...).
Anyway, it's up on my site if people want to check it out. Just reverified xhtml, but css verify is failing (hate that!) with no useful message. And it's not the calendar! ;)