OK. Novatech will supply you with what you want, for more info go to click here if you cant find what you want ring them, they are nice people to deal with.
Toshiba will also sell you a laptop with what you want on it. More info click here
Rockdirect are well made, but customer service has been a bit poor recently click here they will also help yoi with want you want.
Hopefully these 3 will help. Toshiba do sell great Laptops, my last 3 have all been with them. My recent one in Jan of this year was tailor made spec wise for me & all for £600 for a Laptop worth £750 with anyone else.
Kate B is spot on Mac,im guessing the Sony would cost around £1100..you have plenty of choices out there that will do exactly the same job for half the money or less. Obviously your choice,some people swear by Sony and would not buy anything less.