I have posted in the past about tableless design and how I think it is a bit overboard in Tables aren't evil. Darren Chan has posted about a good PDF find... a chapter about liquid layouts using both CSS and tables in a new book, Bulletproof Web Design
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Web How-To: Create Liquid Layouts that Never Fail
Prepare your site for worst-case scenarios with these tips. The payoffs: less code, less maintenance, more viewers, and better search-engine results.