Right now, I'm on a 17" Core Duo iMac and I shoot with a Canon Rebel XT. I'm starting to get a lot more serious about this photography thing. Let's say I have a little over $2000 in my budget. The question is, should I get a Macbook Pro or should I upgrade to a Canon 40D and settle with a Macbook? I'm wanting a laptop so that I can be more portable, especially so I can work on photos while on trips and stuff. I use Aperture 2 and Photoshop CS3 for my editing. The problem is, the Macbook is obviously not ideal for photo editing given the inferior GPU and smaller, glossy screen. The MBP certainly isn't ideal either from what I've heard about the screen in it, but it's definitely better than the MB. Other than that, I don't think I really need a laptop for much else other than internet/email on the go. And with the new Canon rebates, a 40D would be mighty useful to me, as I'm beginning to run into the limitations of the aging XT, and a backup at shoots is always a good idea. So, any thoughts?