Again, here's all the requisite info. Broadcast map.
First of all the game is being broadcast on ESPN360 (not sure about Europe), so if you can find someone with the right provider, you should be able to view it there.
There are plenty of places to watch the game this week, especially considering how many meetups there are around the nation for both USC alum and Cal alum. Using Google Maps, USC meetups are here, Cal meetups are here.
For info on watching Cal-USC online, click here and view the instructions. Don't want to post directly since these streams keep on getting taken down if word spreads too quickly. Keep it on the down-low folks.