If you want a light, but high-performing laptop, I'd suggest this - (http
/www.amazon.com/MSI-GE60-Apache-Pro-003-15-6-Inch/dp/B00IMTQ3UW/ref=sr_1_2?ie=UTF8&qid=1405980349&sr=8-2&keywords=860m+laptop) -$1,082.99 and it only weighs 5.3lbs.
It can run most modern games on high settings and it's a fairly lightweight option. Another option that's even lighter is the MSI GS60 Ghost (http
/www.newegg.com/Product/Product.aspx?Item=N82E16834152566R&cm_re=860m-_-34-152-566R-_-Product) - $1,419.99 and it weighs 4.3lbs. This option is a bit more expensive, but it comes with an SSD for fast boot times.
The only issue with thinner and lighter laptops is cooling. Generally, these types of laptops may face overheating issues because of their smaller chasis and therefore, I'd recommend getting a laptop cooler if you plan to play for long sessions. This is true for most gaming laptops as well, but thinner laptops tend to heat up faster.
If neither of these work for you, I'd try customizing a computer at our site (http
/www.ibuypower.com/Site/Gaming-Laptop) and check out our selection. (Promotional Code - BOXBOX5 - 5% off purchases of $1,299 or more)
Let me know if you have any questions!