Best Laptop/Systems for video Editing

[cwadhwa]

Hi,

I need to edit videos to make them of quality which could be telecast on TV channels. Till i was using my old PC. Since now i need to edit them of good quality so i need to buy a laptop (preferably) or a desktop which suffice the editing requirements.

1) Could you please help me with spec/configuration?

2) Could you please help me figure which laptop would be a best buy - DELL, SONY, Toshiba. I want one which is windows based so Apple is no more an option.

Please provide your guidance.

Thanks in anticipation of a quick reply!