Hey GC,
I recently went through the same process and was looking for a laptop originally to browse, note taking and as a netflix youtube machine.
In the end I settled on a tablet instead. If you like IOS, why not an Ipad pro with the keyboard attachment?
I went for the Pixel C as I prefer android but so far it's performed perfect for the light computing tasks needed. Much more portable and better value than if I went into ultrabook territory.
Edit: Also, the way I see it, £600-£800 is either mediocre laptop territory but top of the line tablet range.