First thing is first, because you want to game, there are some major things that the laptop you mentioned won't work.
- Processor wise, you'll want an Intel i5 or i7 and if you're tight on budget, an i3 may be ok.
- GRAPHICS WISE: This is the biggest factor that will affect gaming. You DO NOT want an integrated graphics card ie you do not want Intel HD Graphics. You'll want an NVIDIA or AMD Graphics card. Here is a list of a comparison of laptop graphics card: http://www.notebookc...List.844.0.html
- I agree with the others that 15.6" is the max you want unless you're basically not going to be carrying it around at all. Also, if you don't plan on really using it off the charger, don't worry about battery life too much.
- Another thing to consider is screen resolution. Higher the better, and it makes everything, especially web browsing, a lot better and easier.
Let us know your price range because if you do want to game, and do want a laptop that won't break down after 2 years, you need to pay for that quality, maybe around the $700 or $800 minimum. Acer is known to be cheaper quality but also cheaper prices. Asus has a very good reputation as well as Lenovo in terms of quality/longevity. Other companies may not be so bad, it just depends on the laptop. Generally, a $400 laptop will be pretty bad in terms of specs and quality, but a $1000 laptop from the same company can be a very premium laptop.