I played around with CSS layout today, and came up with a pretty decent simple way to get both left and right bars (e.g. for navigation) with a “fluid” main-content section in the middle. I even figured out how to make it nest. Yeah, I know the real HTML/CSS gurus out there probably think this is pretty basic stuff, but it actually took a while before I could get it so stuff wasn’t overlapping or getting pushed out of alignment. Check it out here.