Zoom layouts

Found an interesting article at StopDesign on 'zoom layouts' today, a strategy (IIRC) originally proposed by Joe Clark for making your site design(s) more accessible to low-vision users (who may not use screen readers). Now I'll be the first to admit my own prior strategy in this respect was simply to ensure that site visitors could leverage text zooming/scroll wheel controls for font sizes as required, but what if you want to provide more granular control over the regions of your page to be 'zoomed'? If so, then click the links above for some brain food.