first off wrong question.
the first question about getting a new machine is what is the highest you will spend?
What is the cheapest parts to hit the minimum benchmark?
personally 300-400 quid is a good area. those tend to run guns fine.
Max has a good point here!
Also pies mentioned shared graphics, is this Intel trying to rephrase intergraded graphics?
If so avoid..
Aim for a graphics card if for no other reasons than a longer lasting ram.
Though now days any rigs, laptop or desktop have more ram than a field of sheep...