what good laptop for $400 - 600 ?

ok i not very smart with computer.

i want to buy computer so i can play games and do all my school work on it.


games i play:

runescape
and game like cod = black ops
fable , all the good game

i want to knoe what a computer should have in order to the to run without lag.

i looked somewebsite for computer - i will be going to the shop and buying it.

HERE A LIST OF LAPTOP in my price range. can some one take quick look and tell me which one is better ? or if u knoe a laptop that good can you send me link

http://www.thegoodguys.com.au/banks...106869&currentPage=1&identifier=1293793069562


http://www.jbhifi.com.au/computers/0-1000-price/