Hello, I'm looking for a good argument on whether to purchase an 8 core 2x 2.4GHz Intel Xeon E5620 MacPro now versus the current suped-up model iMac. Am I wrong in thinking that there isn't that much of a speed difference in the two computers? I would be using this for HD video editing and color grading. One of my main concerns is that the current MacPro model seems like it's not going to be around for very much longer, and that Thunderbolt is going to be the new thing. It worries me that the current MacPro doesn't have Thunderbolt. If the iMac gets too slow for me next year, I feel like I could resell it for a good price, more so than an older model 8 core MacPro. Oh, and I think I should mention too that I don't believe Apple will lose the MacPro line of computers; they'll be around for a while anyway. I guess this is also one of those questions that could be answered if I knew when the new MacPro line was going to come out, but wouldn't we all like to know this?