As mentioned if you are considering alienware cause of EPP and delivery then take a look at ideal tech. They having offer of free shipping and already have EPP programme in place.
And with regards to the build the alien ware still uses the 7xx series card. Why spend money on something which has already a new successor which is cheaper , cooler and more powerful. Im not very sure but I don't think DELL had lowered their prices to match the price drop of the new Nvidia GPUs.

BTW the jump from performance gtx 745 to the 970 is huge!