Looking for a high end laptop without overspending.

Hello guys,
I'm looking into buying an new laptop right now for high end gaming/video editing, I have seen many good ones but these are the two that struck my eyes the most.

Sager NP9170 / Clevo P170EM

and the Asus G75VW (http://www.tigerdirect.com/applications/SearchTools/ite...)

The only difference I would customize between the two would be having an 680M GPU over the 670M and of course $300 more.

My questions are: is, 680M really worth $300 more? I'm not too familiar with Sager, are they a good brand to trust $1800 on? And is there a better deal I can get for what I'm spending?

Please let me know what you all think and thenk for helping.