1280x800... i didnt have safari maximized but it was a pretty big window already. Even after maximizing it the follow button was still below the fold, when clearly this entire website was designed to be viewed in one window.
I don't see the buttons on Chrome before scrolling on my 13" MBP, but since I'm stubbornly sticking to 10.6 I did get a nice big scrollbar to let me know to scroll down. :)