I meant the normal body text to be honest. Instead of showing off with one frame, why not typeset the whole page in one of the fonts? I couldn't find anything both toned down and "different" in there, but this might come close: http://typekit.com/fonts/392 Give it more spacing and you could use it for "normal" text (or even http://typekit.com/fonts/129 if they want to stay with web2.0-ish sans)
Probably because on Windows most of the fonts they have available would look blurry at less than 18px tall. This is due to the way font-hinting and anti-aliasing works (at least in Vista and XP).
