[freakshow]

I'm looking for a gaming laptop, preferably 15.6", but I'm out of date with all of the technology..
Is there a big difference between the GTX560M vs 570 or 580?
Is one card a better bang for your buck?
Between Asus, MSI and others, do some have a crappy reputation?
Do many new games depend more on RAM/CPU than GPU?

Right now, I really only plan on playing SC2 and D3, but I would also like to futureproof myself, if the cost is reasonable..

Any advice is welcome.. thnx