Buying laptop. Help needed

[Avalanche]

Hey guys, I'm getting a new laptop.

I currently have a HP Pavilion dv6 that did everything I wanted it to. It's dying now and it's on pretty much on life support as It's attatched to a monitor, external keyboard and etc etc.

I'm getting a new one! My budget I would like to cap at £800 but the less, the better.

I'm thinking intel i7 is a must.
I'm thinking 6-8GB+ of ram is a must.
Optical disk drive is a must.

Apart from those factors that to my knowledge are the most key for a fast, nice experience system, I'm unsure what else is needed.

I'll be mainly surfing the internet, having lots of files open at once and playing modern games at an enjoyable standard in terms of graphics.

Some ideas I've had in terms of purchase.

http://www.pcworld.co.uk/gbuk/laptops-ne...9-pdt.html

http://shop.lenovo.com/gb/en/laptops/ide...ries/z710/

http://www.laptopsdirect.co.uk/Hewlett_P...ersion.asp


Any suggestions or insights to help a rookie out?