I'm hyped for D3 for sure, D2 being amongst my most played games ever. What I've seen so far is looking really cool, I can't wait to actually play it (Blizzard better not delay it, we've been waiting for quite a while).
But I have no interest in the collector's edition... Yeah, the Diablo skull is cool, but not worth the extra money to me, and there's nothing else interesting in there (artbooks and behind-the-scene DVDs don't interest me).