For me.. A pro machine is anything that fits my needs at any given time.. notice I said "needs" and not "wants". What do I do? well, I'm a college student (I guess you could call me a pro student) that does tons of projects, reading, writing, studying, etc.. And my most important hobby is photography, but I'm only an amateur aspiring to be a professional some day.. So.. the first most important thing for me is to have a great display, a great display for me comes in a matte finish with reasonable resolution (something in the area of 1440x900 1600x1200 depending on the size of display of course) Second- I need my machine to be compact because I carry it to the university all the time and usually it's sitting on a small desk. I don't want to look like I have a desktop while sitting in my econ class.. plus when I'm at home I already have a desktop with 24" display. The last criteria for me is multitasking power.. I usually have at-least five different operations going on at the same time.. working on a school project would require a lot of RAM (2-4gb is adequate) and CPU doesn't have to be over the top performance. And for my photography I need storage space (320gb minimum, I have a secondary backup HD of course), 2-4gb RAM, and any dual core cpu over 2.0 will be perfect.. express card slot would be nice but not necessary, every other feature basically means nothing for me.. SO. the perfect pro machine for me is between the 13-15" range with Matte display of at least 1440x900 (I could even make do with the current macbook res if it was matte, I would buy it in a heartbeat).. RAM and Storage come second.. 2-4gb ram and 250-320gb HD is perfect.. Last comes the CPU power/speed whatever you want to call it.. any dual core over 2.0 will be more than enough for me.. If I could custom order my MAC Notebook using the "very practical criteria" I have listed above. I would be one very happy person.. To me, PRO is defined by what your current needs are, and what functionality you require to complete the tasks you work on.. For my needs, Apple currently produces nothing I would call PRO.. atleast for my needs. slap a matte screen on the white macbook and I'll be good to go.. If the white macbook had a matte display I'd be all over it.. I'll name it MY WHITE MACBOOK PRO and be done.. I'd be so happy. One last thing.. the graphics card has to be powerful enough to power a secondary HD monitor.. the 9400m is more than capable of doing that and getting the things done that I do..