Best Reviews of Sony VAIO NW20ZF/S 15.5-inch Laptop (Core 2 Duo T6600, 4 GB RAM, 320 GB HDD, Windows 7 Home Premium)With so many on offer recently, it is great to have a brand you can recognise. The Sony VAIO NW20ZF/S 15.5-inch Laptop (Core 2 Duo T6600, 4 GB RAM, 320 GB HDD, Windows 7 Home Premium) is certainly that and will be a superb purchase. For this great price, the Sony VAIO NW20ZF/S 15.5-inch Laptop (Core 2 Duo T6600, 4 GB RAM, 320 GB HDD, Windows 7 Home Premium) is highly recommended and is a regular choice amongst lots of people.