AnandTech took a look at the Gateway P-6831 FX gaming notebook which is available for about $1,350.
In fact, it's not really all that difficult, and NVIDIA launched exactly that sort of chip in late 2007 with the GeForce 8800M GTS. It has 64 Stream Processors, just like the 9600 GT. Most of the gaming laptops have opted for the more powerful (and more expensive) 8800M GTX with its 96 SPs, so we were quite interested to see exactly how much performance you give up by going with the 8800M GTS. Unfortunately, we can't really do an apples-to-apples comparison here, because Gateway didn't stop at cutting down the GPU. In the system we received, they also trimmed the CPU performance quite a bit, dropping all the way to a 1.66GHz Core 2 Duo T5450. That certainly means CPU performance isn't going to match up well against something like a 2.8GHz X9000; what we want to find out is whether it can still provide adequate performance.
Read the full review over here. The reviewer was very satisfied with this notebook and says it's the best mid-range gaming notebook ever.