Which one should I buy?

[Inxie]

Basically I have 2 Laptops im really keen on but im unsure which to buy. I dont know much about laptop components so if the experts could advise I would appreciate it very much

This Acer for £280
Acer AS5551 P320 3GB 320GB laptop Black - Tesco.Direct

Or

This Compaq for £240
Compaq CQ56-103SA Laptop (Intel Celeron T3500, 2GB, 250GB, 15.6" screen, Windows 7 Home Premium) Black - Tesco.Direct

Im looking for general speed and performance but it would be nice if I could run some games like COD4 and Sims 3 without any problems, nothing too demanding.

Thanks.