Kimbro says I'm with Dave, I want to know why tables are so bad? I wasn't going to jump into this dicussion as it isn't really my area, but I've heard the discussions so many times before that I can reasonably parrot them back.
Pick any one web page. The value of css isn't so apparent. And the alternatives are reasonable. But from that web page, click on a link. Repeat three times. Now take a look at the page you are on. Inevitably, it is an HTML page. Not designed to be printed. Or viewed by someone who is visually impaired. Or to be viewed on a WAP phone. Sure it just *might* have an XML icon in an orange box; in fact it might have two or three. But go into what you find and follow a link and you are back into the web.
Want to see clean separation of content and presentation? View source on diveintomark or wannabegirl. Would you rather the source to this webpage or one of theirs be stored in Xindice?
Dave is proud of his archives that go back nearly five years. Five years from now when somebody wants to access them, they will quickly realize that they were designed to be viewed by desktop machines. Their response will inevitably be, "how quaint".