For Haswell gaming laptops, it's the MSI GT60-2od and GT70-2od is where it's at. 3 mSATA slots in RAID, + 1 mechanical drive slot, 780m GPU with optimus, super high cfm fan that keeps the machine cool, rainbow backlit keyboard, 15.6" version is under 8 pounds.
MSI lets you repaste the GPU and CPU without voiding the warranty, pretty awesome