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What is your current budget?:
Maximum budget about 1000 GBP, but would like to not spend it all. looking to spend 600-700 comfortably
(bout $1500 USD, max. comfortable amount 950-1100)

What part are you looking for? Why do you need it?:
Whole new Laptop. The laptop I have now is kinda old, been thru some wear and tear and starting to give me problems.

Also if it's not too much trouble, I'd prefer (not compulsory) a laptop with the Delete, Home, Pg Up, Pg Down and End keys down the right hand side
Like this:

 Spoiler

What parts are in your current computer? Be as specific as possible. Links to Newegg/Tigerdirect are best. If you have a pre-built, include the make and model.

 Spoiler

Intel 4 series Express Chipset Family display driver
Vista home premium
Not sure what else to mention here.

How do you intend to use this new part or new computer? What's the heaviest load it's likely to encounter?
Want to be able to play games on it. Hopefully gonna be buying a buncha games from the Steam Summer Sale, also want to be able to run Maple, WoW and Diablo 3 without any hiccups (not necessarily simultaneously)
Want to be able to browse the web at the same time as playing too, play music in the background

If you live anywhere other than the United States, please indicate your country.
I live in London, UK.

I have a friend that's running D3 on a 2011 Macbook Pro 13 inch, obviously not on high or anything. The Mid 2012 MBP 13 is also about your budget range, it would run D3 and WoW for sure in OSX, but maple you would either use boot camp or something. If you like Apple, that's definitely an option. Otherwise, there are plenty notebook recommendations from recent posts that you could have a look.