Bejeweled 2

I have to agree with what Sammy said about Bejeweled 2 it's such a great game. Personally I get frustrated because I can never seen what move is next. If you have never played Bejeweled then you should do but I will warn you when you start playing it gets very difficult to put the game down.
(Bejeweled 2 - http://www.astraware.com/all/bejeweled2/)