What is a good laptop for me?

i need a laptop within the price range of $500 $780 i play allot of games, but if it cant play games im not to fussed, i need it to be fast, look good, not freeze all the time, preferably lightweight, i`d prefer xp but win7 is fine, definately not vista, needs to have allot of memory and ram. also i live in aus so something i can get round here