50k-60k

so i wanna get a lappy... my requirements 1) i m no game freak, but play a few good 3d games sometimes 2) my budget 50k-60k 4) i work on adobe photoshop cs2 5) sud weigh <= 2kg so which brand sud i go 4??? n which processer... AMD, core 2 duo or core duo. whats the diff btw core 2 duo or core...