please help me a notebook with turion ?

I want to buy a notebook but I don't know what my expectection from a notebook must be & what is important,
I think it should be sufficient at least in two years ,good cpu & graphic card. Regarding to these demands I think Hp Dv6000z or v6000z(amd turion x2 Tl56(1.8ghz)+nvida6150),dv9000z(tl60+nvida7600) ,acer aspire5110 or 5100(Tl56 amd turion X2+radeon 110),acer ferrari 1000 or 5000(tl56 or 60 amd turion X2+radeon1600) may be my chioces because of they are 64 bit two core and this will be sufficient for futures
please help me to know: 1.what I must expect from a laptop? 2.what do U think about amd turion X2 3.what notebook do you suggest me & 4.acer ferrari specifications are likely to aspire5110 but it is more expensive than 5110 is it cost-benefit??