I currently have a MP with the 24" LED and in a few weeks I will be done with most of the video work I originally needed it for. It has the 2.66 Quad and while I love the machine, I could easily get by with an iMac once I am done. That being said, I would like an iMac quad core eventually. With the upcoming core i7,5, & 3's.... is there a mobile quad chip in there? If there is a mobile quad also clocked at 2.66 GHz, would I have similar encode times as I would on my MP with the same clock speed, just a Xeon class processor? I dont really want to get rid of the MP and LED, but financially it would be the right choice based on my needs. I just do not want to get a 24" laptop to replace it, I will still need the performance just significantly less than I do now.