I recently bought a Dell Inspiron 15R i15RN 5297BK for 300 dollars ( hasn't arived yet). It has an Intel i7 2670QM, 6 gb of ram, 750gb hard drive and a Nividia Geforce gt 525m 1GB gpu. My question is can I do some gaming with this laptop. I usually play games at the lowest resolution with all features turned off. Some of the games im intrested in playing are COD (all of them), Bioshock, Skyrim, battlefield 2 and some others. Also, should I upgrade the ram?