I bought Fifa 11 at half price. It is decent.

The online mode works very smoothly and you will find plenty of players with either the 11 or the new version for a while. The passing system is not always accurate...

I would give it 6-7/10

You should try PES for Wii. It is a much refined experience with the best (if not the only good) controls for a collective sport game. Unlike any other football game, PES allows a lot of control of the off ball players in such way that you actually control the team rather than the player who currently carries the ball.

Also, PES's graphics are pretty good and are realistic, whereas FIFA moved to a more cartoonish style. This a question of taste, but you should have it in mind.