New Laptop For Misses Help

Hey Guys. Need a little help from you guys in the know.

Misses needs a laptop that will be able to run her new web designing and creative design idea she has going.
Im guessing its gunna have to be a powerful rig to be able to do some computer design programs.

She has a value of around £800 to £1000.

She has seen things like this:

Any ideas?