Hey all ... I'm thinking about purchasing my first iMac. I already have the Macbook Pro but wanted a bigger desktop comp. That being said, I was first contemplating the mac pro but that is a bit pricey. My question is, what are your recommendations through your experiences on the specs for the iMAC. I will be doing extensive photo and video editing using Lightroom and Final Cut. Think having the 2.8Ghz is good enough? I'm going to upgrade to the 4Gb of RAM regardless of what chip I decide to use. But wanted to see what everyone thought about the 2.8 vs the 3.06.