Would you go for i5 or i7 in the new one? I just ordered the i5, because I'm worried about heat, battery time and fan noise. Also, I'm having a hard time thinking that there's any noticeable difference in performance for the things an 11" will be used for (productivity apps, surfing, torrent/usenet, video playback etc). It's not like Safari will start up any faster with an i7 than an i5. I'd like to hear the opinion of previous 11" ultimate users though, do you see a use for the extra juice the i7 has over the i5? The money isn't really an issue, but so far I haven't found a good reason to go for the i7 other than to satify the "i want the best" urge.