Maybe... The main body's width is 980 pixels, so if you're running a screen resolution of 1024x768 it can seem rather overwhelming... But few people I know use monitor resolutions that low anymore. Typical visitors to my site run 1280x1024 or equivalent widescreen resolutions like 1366x768. My monitors, for example, run 1920x1200, 1680x1050, and 1440x900.
Offhand, though, yes, AC wants the facebook/twitter/email/save/share buttons on the posts (though unobtrusively)... I forgot to account for that in my mock-up.
Cool, that'll work fine; the options are all there, but I don't want them on the pages now, lest they get clicked and link to a page that won't be there anymore once the setup is completely moved to your site, lol.