1. Preferred Brand - Any
2. Budget - 2k
3. Usage - College assignments/researches, casual surfing, minimal photo conversions/editing, pretty serious gaming. (Crysis, Black Ops, L4D, you name it.)
4. Preferred laptop/screen size - >14, or any size that is comfortable for said usage.

I got my eyes on the AMD Llano laptops, the Acer Aspire 5560G to be specific.
Read a few reviews saying that it could suffer from "micro stuttering," since it utilizes 2 types of GPU.
Llano laptops dependence on good drivers also concerns me, though it could improve as time goes by.
Could anyone clarify whether this model has the AMD A8 or A6? From my findings it seems that newer models would have the A8 instead of the A6, which is a plus.

But then, I stumbled upon the Acer Aspire 4755G, though it only has 2GB of RAM.
Would it be enough for the laptop, or would it be able to utilize 4GB of RAM? Upgrading is always an option, though I fear it would go over the 2k range.
The fact that the screen is smaller is a slight cons, but it has a USB 3.0 slot, which is always good.

Any help is greatly appreciated.