for editing you'll want a quad i7 and a dedicated graphics card. Look at PCs with the GTX660m/670m/680m or the GT650m which is slower. For 1500 you can probably get a good high end gaming laptop with a good quad i7 and GDDR5 GPU.
Theres tons of options, just gont get a low end mac dual core integrated graphics.
Lenovo makes a pretty good laptop called the Y580 which has a 1080p screen, 7200rpm 750gb hdd, GTX660m, 2.8ghz quad i7 and 8 gigs of ram for only a little over 1000 bucks. Theres tons of options though in other brands like HP alienware, MSI, acer, asus, etc.
the gpu matters the most, they pretty much all have quad i7s if they're over $1000. You can also remove the optical drive if you want and replace it with a SSD to speed things up, or a secondary hdd.
"take deoxyribonucleic acid for example. Sound's impressive right? Ever see what happens when you put something in acid? It dissolves. If our bodies were all full of that acid, we'd all dissolve. So much for the theory of evolution."