listen, if your gaming is your top priority , then u must prepare a good budget for it, i'd reccomend an alienware m15x but its a bit more expensive than laptops in carefour(they stink for gaming actualy) so buy a :

2gb ram(dont worry u dont need more than that)
2.5ghz core 2 duo proccessor
nvidia 9800m gt 512 mb

and dont worry about running heavy games (gow,cod4.ut3....etc) on it ,it will work at max res and highest settings....

anyways its for 8000 qr but its worth it