This is one of the best game import sites in the world. There is a Lucky Spring Sale that just has been announced where you can win prizes for purchasing items which are really cheap. You can find games here from $15 upwards whereas if you try to buy them here in Australia it will cost you about $100 not to mention that not many games get released here also.
Note: Affiliate Link
this place was awesome when the exchange rate was higher.
one thing though, check your regions when you buy console games.. most are american i think