Samsung Series 9 NP900X4C-A03US

http://www.photosandreviews.com/content/uploads/2012/07/NP900X4C_001_FrontOpen_thumb_silver_2-150x150.jpg

highly portable (light): 3.6 pounds

long battery life: Up to 10 hours

high screen def: 15-inch 1600 x 900 non-glare

at least 4 GB of ram: 8GB RAM

Needs to have at least a 2 year international warranty: 1-year limited warranty on parts and labor

SSD might be a plus: 256 GB SSD

Must have wifi: Wireless-N Wi-Fi

Price: $1,799.99

http://www.amazon.com/Samsung-NP900X4C-A03US-15-Inch-Ultrabook-Mineral/dp/B0082PZ1JU/ref=pd_cp_pc_0