If you wanna add a little gaming to that office laptop Asus ROG G551JW will be ok (1600$, Intel core i7-4720HQ 2.6 Ghz, GTX960M 4GB 12Gigs ram 128GB SSD 1TB Hardrive 15.6" screen)
if not, you can get Acer Aspire V Nitro7-571G(933$ Intel Core i7-5500U (2.4 GHz), Nvidia GeForce GTX 950M (4 GB), 8 GB RAM, 1 TB HDD, 15.6", Windows 8.1)
but you probably should lookup what you laptop you like and buy it, it's your preference