Lenovo ThinkPad W530 243857U 15.6-Inch LED Notebook (Intel Core i7-3740QM 2.7GHz, 4 GB RAM, 500 GB HDD, Win 7 PRO 64) 3 Years Warranty
Brand: Lenovo

This portable 15.6-inch workstation is under 6 lbs, yet can plow through graphics-intensive, ISV-certified applications with lightning-fast processors, advanced graphics, cutting-edge technology and the rock-solid reliability you expect from Lenovo and the industry's fastest and lightest mobile workstation.
Specifications:
NVIDIA Quadro K2000M 2GB Graphics 802.11a/b/g/n WiFi, Bluetooth 4.0 9-cell lithium ion Battery Windows 7 Professional 64-bit Lenovo 3-year Warranty

Processor: Intel i7-3740QM 2.70 Ghz (x 8 threads) , 3.70 GHz (x 4 Threads) , 6 MB L3 Cache , 45 Watts
Operating System: Windows 7 Professional x 64bit / Optical Drive: SuperMulti DVD+/-R/RW Optical Drive
RAM: 4GB (1 x 4GB) DDR3 1600MHz / Hard Drive: 500GB 7200rpm HDD / Graphics: 2GB NVIDIA Quadro K2000M
3 years warranty