Table layouts are spawned under the armpit of the dark one – although Jamy is right, they work wonders on emails – but then again so does in-line styling lol
The only other place I use tables is on tablature data of course and forms that are huge or within the WordPress admin back end when I am making a plugin or theme options.
For the record, forms should always be try and layed out with <fieldset><legend><label><input> tags. 
