The links in this thread are very interesting. Up to now, I've only used style sheets for basic stuff, but having read some of the articles, I decided to try redesigning my own site without using tables as much.
First impressions are mostly positive. There have been a few unpredictable things happening, but nothing insurmountable, and it's so easy to try out new things, even drastic changes. I swapped the left and right columns throughout all the pages in about 20 seconds!
Anyway, when it's done, I'll post a link, and see if it works or not.