Reply to Buying new Laptop looking for opinions

Hi, everyone!

I've started Djing half-into last Year (directly into a club without "home Djing" practice) and totally love it, bought an Audio Interface (Komplete Audio 6, since I'm planning to study and do some production also), and afterwards bought a Traktor Kontrol F1 (yes I know I should have bought a more "standard" Controller but I got used to it and like it very much).

My First gig was using Virtual DJ, but since my second gig switched to Traktor Pro.
I've been using a Macbook Air (early 2010, Core 2 Duo, 2 Gigs RAM, 180 SSD, geforce 9400M) for Djing, and everything, it's my main and only Computer.

Now I'm planning on buying a new one since it's old and it hangs a bit if I try to use FXs, Samples, and do more than basic "play, stop, load Track" on Traktor Pro.
As the new Computer/Laptop will replace my old MBA I'm looking for something powerful enough to do lot's of things (Gaming too).

So I've ended up with this two Laptops:

Macbook Pro (non-Retina).

Razer Blade MK2 (or late 2012 as it can be called).


Both have similar specs, I'm most inclined for the Razer since it has a bit more power and I wouldn't have to make a Windows Installation/Partition for Gaming.