Well ALA has bitten the bullet. In A List Apart: 16 February 2001 - Issue No. 99 they start out on their journey:

Building a standards-compliant redesign of ALA should have been easy. It wasn't. The first problem was understanding how CSS actually works. The second was getting it to work in standards-compliant browsers.

A List Apart: From Web Hacks to Web Standards

THERE ARE JOURNEYS that touch the deepest core of the human spirit. And then there is this one. This is a journey from six years of conventional web design practice to the way we'll build sites in the future. Only it's not set in the future. You're soaking in it.

From the beginning, we've done whatever we had to do to make our sites work in every browser. In the world of non-standard HTML Design, we bolt every word, every image into place by manipulating table cells.

For the record ALA looks great in Mac/IE5.