4
there are tons of expandable themes out there. You are going to need to be much more specific. Is there are particular color scheme? Are you only interested in table-less?
Zeta is a nice theme but it is still far from universal. I have installed it on several websites and it requires a ton of work.
applying widths to every aspect = GAHHH! It also does not play with modules very nicely.
All in all it is a nice theme, and as far as table-less go I would agree that it is the best choice for a starter, but don't assume that its going to be an install and go, as with any theme really you are going to have to put work in it.