Requrements of gta iv

Hello,
hi i am looking to buy new laptop.I am very fond of games and i am a die hard fan for gta series.My doubt is that what configuration should my laptop posses to run gta iv game?And a i will try to buy a hp laptop within 30,000 range...does this hp laptop provide a core 2 duo processor with 2.2 ghz and 2 gb ram and 512 mb nvidia video card...especially does this contain 512 mb nvidia video card..and overall does this configuration can run gta iv with best quality?which video cards the hp laptops are providing?please please give me full details about this?