Is there a big difference? I really don't think I can spring for the additional 260 megahertz, but I don't want to regret it down the road (I'm getting the SSD by the way, so it will be fast in that regard). I do next to no processor intensive stuff. iMac for that. No encoding or anything, just internet, YouTube, Transmission, Pages, etc. will 1.6GHz suffice? Thanks guys. And like I said, I'll get the SSD, so it will be fast in that regard at least, will it make up for it? People were saying the 400MHz bump on the MB wasn't worth $300, so I'm curious if it will be worth it on the MBA, but I'm doubtful. Thanks!!!!