at 1700$ you can buy a laptop with a HD 7970m, which is approximately as strong as a GTX 570 desktop gpu(enough to play battlefield 3 at 1920x1080 with pretty good settings)
edit: if you want a 17 inch model, buy the sager np9170 here
the main configurations you want are changing the gpu to the 7970m, and adding windows home premium, which will bring the total near 1600, then you can do what you want with the rest.