Notable from the list are The Invisibles: Say You Want a Revolution, Death: the High Cost of Living, Transmetropolitan Vol. 1: Back on the Street, Preacher Vol 1: Gone to Texas, though the whole list is really quite good.
I also checked out some desktop comic viewers — basically alternatives to Preview (on the Mac). I like SimpleComic (pictured above and free and open source) but ComicBookLover is also worth a look (though pricier at $24.95).
Though the idea of reading comics on the desktop is appealing, like most physical media trying to go digital, I agree with James that something is definitely lost in the translation. Still, think of these downloads as the equivalent of 30-second iTunes previews and then go patronize your local comic store!