I just picked up a copy (from Japan) of Pro Yakyuu Spirits 2010. Its the Japanese Nippon League. It's by far one of the best baseball games I've ever played.
Unfortunately a large portion of it is in Japanese. However, there is a really good site that explains modes/translations etc... http://www.spiritstranslation.com/
Anyways my copy was something like 73 bucks but its fantastic! I totally recommend it. I had to get it on ebay but here is the game on play asiahttp://www.play-asia.com/paOS-13-71-bp- ... -3ph9.html
BTW Ps3 ONLY is region free. This game will work on USA PS3's but not on X360's!! I think PSP will work as well.
Oh side note the Pro Yakyuu Spirits 6 (2009 I believe) has the WBC in it along with all the players