I'm looking at the Core i5 model of the iMac which has an ATI Radeon HD 4850 graphics with 512MB. From what I understand, I thought 1080p videos were data that you can transfer from Firewire to the iMac, but I've read a lot of threads where people would say, "the iMac can edit 1080p videos, but it cannot capture it". Okay so what is the proper way to capture or transfer 1080p (AVCHD) videos from a camcorder to an iMac then? Is the video card the iMac is using not good enough? Do I need a Mac Pro with a new video card? I thought we're just transferring data to a computer. Thank you.