Dunno if you are still shopping around (it's been 3 months).
If you are, here is my experience with laptops/desktops.
I find that I spend more and more of my time mobile and while I had a decent tower gaming rig I find I need the portability of a laptop more.
For the $700-1000 range I would seriously consider a Dell XPS or a HP dv6t series laptops. Both companies run weekly deals. Sign up on a discount site like slickdeals.net and you'll get notices fairly often. And don't forget Lenovo they also have comparable products.
I find that if I look at an Alienware for the hardware specs, then downgrade a little bit, I can find a HP/Dell/Lenovo laptop in the $1k range.
Last year I picked up a new XPS 17 from Dell. It had fairly decent specs (i7 2nd gen, 6 GB, 1920x1080, Blu-ray, GTX560M, and some bells and whistles like a backlit keyboard and enhanced speakers.)
While I mainly use it for productivity, it runs Skyrim, SWToR, and other games at medium to high settings just fine (70 fps on medium, 40 fps on high).
I picked it up for $799 ($863 after shipping/tax/etc.) It also came with a $100 coupon for extra software/hardware so I picked up Skyrim
It's been a year so you can get the same or better by now.
Personally, I feel > $1k for a laptop is not worth the cost-benefit. As others have mentioned, their specs are always about a year behind desktops and they are more difficult to upgrade. YMMV of course.
Good luck with whatever you choose!