Calling all Photographers, Mac Users, Apple Nerds, Etc.

Okay LJ...I'm turning to you for help.

My friend Julie is a photographer who up until now has been dedicated to film cameras. Over New Years, I visited her and we had pretty much the following conversation:

Julie: *looking at college classes for digital photography* I should really consider getting into digital photography, but I don't want to learn all this stuff--"digital file management," or "using histograms for color correction." I don't want to have to know all that! I just want to take pictures!
Katie: *petting cat* I'd learn it.
*Pause*
Katie: No, I mean...I really would. I love stuff like that--messing around with pictures and doing computer stuff...I'd do it.
Julie: And I could just stand by your elbow and say "make that more blue" and you could do it! And not know how you did it, it would just happen!
Katie: Yes, exactly! I have no interest in taking photos...just making them look neat. I like this plan.
Julie:Me too!
*pause*
Julie: No, I mean...I REALLY like this plan!

So. Now we're emailing back and forth at length about what we'd need to actually make this work. ( This is where your advice is needed! )