I will suggest you Acer Aspire 5741-3541..The specification of this laptop are Intel Core i5-450m processor..
15.6'' HD LED LCD..
4GB DDR3 Memory..
500GB HDD..
6Cell Li-ion Battery..
i am not sure but you buy one laptop that i inform you dell core i7 this is really very good and excellent laptop i really enjoy this laptop and all games easily run in this system amazing