Lenovo has much better graphics, better screen, better cpu, and a worse? hdd but has a boot drive.
I personally would go with 500GB 7200rpm hdd and save the $100. The samsung is a poor deal.
Sager's halloween special at 1200 is another option even better graphics but its more expensive.
At 1300 you could get a large heavy but powerful gaming rig the ibuypower.com halloween special.