Hi everyone, I've been a lurker here for the longest time, checking out the informative posts that everyone has been.But recently, a chain of events(i.e. my purchase of a 5d mark ii) has compelled me to register and seek advice from the gurus here. Prior to my camera upgrade, I was working with a 20d and a late powerbook model (1.67Ghz, 1.5 gb ram), of which the powerbook could handle the RAW files relatively okay. I've been using Photoshop CS2 and Capture One Pro to do the work. While not as speedy as I would have liked, at least it was bearable But with my new camera, I've actually tried working on the RAW files of the 5d mark ii using lightroom, but have found it to be unbearably slow. This has caused me to look for my next upgrade. What I need to know and seek advice on is basically if the current generation of MBP upgraded to a 2.8ghz processor and faster hard drive (7200rpm) would be good enough to work with the RAW files for the mark ii plus even do some HD video editing with the mark ii having the ability to shoot full 1080p videos. Or would I be better off building a custom PC?Quite naturally this would be the last alternative that i'll take as I absolutely hate the windows platform. I just need to know if it is worth paying the premium over for to upgrade to a newer generation of Macs. Thanks for any insights to this!