Need laptop for games and school

i am looking for a laptop that will play most games ok and also do work on

i did own a hp g70-120em laptop but in 1 week has now had 3 major faults that ment it needed to be changed and nowi am fed up and have got a refund

so please can u reccomend me a good laptop for abour £400-£500 that will play games and skool work

3-4gb dvd or bluray

wud like hd aswell