Toshiba Satellite L650 v. DELL Inspiron 1564

Hello,

I am planning to buy a laptop for my studies, and bit of games. This would be my first laptop as I always used deskstops, due to better stability, price.

I have 2 options that I wish to choose from:

1.DELL Inspiron 1564, Intel Core i5-430M, 2.26GHz/2.53GHz turbo, 15.6", 4GB, 320GB HDD, ATI Radeon HD5450 1GB, DVDRW, Bluetooth, WebCAM, HDMI, Win7 Home Premium, black

2.Toshiba Satellite L650-11F, 15.6", Intel Core i5-430M, 2.26GHz/2.53 turbo, 4GB, 500GB HDD, ATI Radeon 5650 1GB, DVDRW, WebCAM, Bluetooth, cardReader/HDMI, Windows 7 Home Premium.

Laptop must be up and running for min. 4 years without any problems. So in point of built, materials, support, etc., which one of the two would be preferable?

Regards
Andre