Here's a great page, when looking at GPUs on laptops. You can chose the game you want to look at, the GPU you're considering, and even compare multiple ones that you have the option to buy.
http://www.notebookcheck.net/Computer-Games-on-Laptop-Graphic-Cards.13849.0.html Simply check the boxes next to the GPU you have options for, highlight the games you want to see specs on, then click "restrict". They have both The Witcher 2, and Skyrim as games on there.
Beyond that, I can say that I"ve been really satisfied with the Lenovo computers I purchased. I recently got a 410p (which is more than you want to spend by $200), and it works phenomenally. It's 14"so it's very portable, has 1600x900 resolution, 750m graphics card, 1tb HDD, 8gb ram, brand new i7 haswell processor, backlit keyboard, etc as well as a really neat feature... the Ultrabay- an easily removable drive bay that you can swap out the disk drive and add a second video card, extra HDD drive, etc (you have to buy those bay inserts separately, though). It was worth the $780 I paid- great "budget gaming laptop" with all the little things I wanted. I also got a G-series Lenovo for my 9 year old and he's able to play lots of games with the HD4000 graphics built into the Intel chip (obviously, he isn't playing skyrim or witcher... mostly minecraft, Garry's mod, etc).
From my experiences at work (I do IT/tech support), the i5 series would be great for you, along with a dedicated card that meets the quality you want (check that site!!!). Since the new Haswell processors came out (4th gen), you can spend less by getting a 3rd gen. Maybe you'll find a laptop in the price-range, or decide to save up more fpr a better dedicated card.
Those are just my personal thoughts- take 'em or leave 'em :)