I am having a hard time deciding between
y510p with the 750 SLI
http://www.xoticpc.com/lenovo-ideapad-y510p-59388313-limited-availability-p-6355.html
or
FORCE 16F3 with the 675mx.
http://www.xoticpc.com/forcemsi-16f3-36053-675mx-msi-gt60-barebones-p-5566.html
I tried looking for some head...