I made a mistake with my favorite pick. I though it read 560m not 460, I apologize.
I wouldn't buy the MSI, I'm just saying, the Asus I listed off BestBuy is plainly better. You will never need 12 GB of RAM on a laptop, mayybe on a dekstop, but only because desktops are faster, and you'll be able to run more at one time.
4 GB is adequate, 6 GB is plenty, 8 GB is overkill, and 12 GB+ is just a waste of money.
It looks tempting doesn't it? Nice laptop too, but you are paying more for features you'll never use.
If you'll buy that MSI laptop, I'd challenge you to use ever single GB available. For me, I have programs like IE, Word, Speedfan... etc... running in the background while I game, I have 6GB of RAM, And I haven't ever made it to 5 GB of usage at some point while gaming, I'm able to monitor everything while I game because I have an external monitor that I use to run Task Manager on...
Please ignore my post about the amazon laptop that has the 460, I was mistaken.
If you prefer something smaller then the G74, then I may be able to find something, If you were just looking for the best deal overall... Then, go with what I recommended, you won't feel bad about not getting MSI, there are some games that have used more then 4 GB, but very rarely... and those are usually memory leak problems, not because the game is ultra high quality or anything...
Anyways, I hope I've helped you in some way or another. I wouldn't recommend you investing your money in the MSI unless you really wanted those 12 GB.
The MSI has some pretty nice features, like Raid, but the G74 is built for gaming. Choose your poison, but I think the G74 will be a better gaming machine, if you want to do a lot of rendering, then the MSI might be a bit better, because you have as much RAM as you will ever need for a long time.