Sagers most inexpensive 17" model is run off a Geforce MX150. You can put 16GB of RAM in it. That is more of a pro laptop for CAD, Photoshop, Rendering. The MX150 will give you things like CUDA and PhysX if you require it over the integrated INtel graphics.
Doing a search on Newegg reveals a bunch of HP laptops that are 17" with Intel Graphics.
You are right in that not many exist. Most 17" machines are loaded with a Geforce video card of some sort. 15" non gaming laptops are more common for portability reasons. Check out Sager and you can custom spec the chasis of your choice. They are a top grade machine with super warranty and service.