World Cup games online?

Does anyone know of a way to watch upcoming World Cup games live online? I am likely going to have to be at work for a 2 of the 3 first round US matches and would love to be able to have it on my PC live so I can still be available at work but not miss the game entirely.

I’ve thought of tivoing or recording the games to watch after work, but I just know I would find out the result before I had a chance.

I don’t believe there are any live webcasts and Yahoo is even charging you to watch a highlight package of each game.