It is unknown when Kaveri laptops will be released. What is your budget?
I would not bother with the above recommendation for a 2011 11" Alienware laptop.
I would rather just buy a ThinkPad T440p ( and equip it with a GT 730m which is more powerful than the old GT 540m in that Alienware laptop. The T440p starts at $832, and the GT 730m is a $130 option. Expensive, but ThinkPads are rugged since they are designed to survive a 30MPH or 35MPH direct impact. It won't be very usable, but just enough to retrieve any important documents on it. It starts at 4.1bls.
http
/shop.lenovo.com/us/en/laptops/thinkpad/t-series/t440p/
In terms of performance, the nVidia GT 730m is basically equal to a the GT 645m, which in turn is a little more than halfway between the performance of the older GT 555m and GT 560m.
I'm not telling you buy the Lenovo ThinkPad T440p, but given the option of that or the old 11" Alienware laptop, it is without a doubt the T440p since the Alienware would not even be an option.