The old Apples and Mac's (Motorola based) seemed nice when I used them at schools when teaching. But their price to me was always THE issue. I've used newer intel based Mac's with double-booting for Windows as well. Again at a school. It was crap, the Windows (XP) mode crashed insistently, and even the Mac O/S mode was unstable on these hybrid machines. I could only wish they did have normal all Mac computers, but no. The adult ed school figured they could get double use out of these Frankensteins. So I just learned to use Photoshop as the Mac version with Mac keyboard even though I'm a PC user otherwise (since it was a bit more stable on these terrible Apples). I guess Apple prices (for nearly all Apple products) are reasonable if you are a design person. I don't really care that my DSLRs are all curvy and slick sensuous looking today. I still think the Nikon F, Leica M3, 6x6cm Rolleiflex, Pentax spotmatic, Canon F1, and many more are all beautiful and totally functional in their day and for film. I've seen people argue over the hair-splitting design aesthetics of different Nikon DSLR models and seem to base a purchase on looks. No, No, No, not for a camera. Yes, for an automobile appearance can be important, yet...

It really shouldn't be an issue running windows on a Mac, I recently picked up a 2006 machine running Snow Leopard, Poor thing was unlucky enough to be built with a 32bit core duo and unable to be upgraded to Lion. So I decided to dual boot it. Started with Vista to 7 to 10 and the latest creators update. I kept the SnowLeopard partition with CS4 on it. Runs well on both sides.

As for the new machine i'd be tempted to use 2 drives as D: in raid 1 faster reads and some extra security if 1 drive dies before its backed up.