video rendering

Sorry I might be posting in the wrong category(I just joined) but I need a laptop for video editing, 3d modeling and graphics designing, I have two options: (a) HP Envy 15 ae132tx Specs: http://support.hp.com/us-en/document/c04942992 (b) An ugraded Dell Inspiron 157559 Specs...

Looking for the best place to buy a custom laptop for heavy video editing at very high quality (Not a Mac). If you know a good one already together my Budget is £1000 give or take preferably i7 decent ssd size, lightweight, graphics card has to be good for rendering the video files in after...