[Grumpy Old Fart]

Just to clear up the issue regarding the Silver pack allowing you to play on-line for free at weekend.

It is not true that Xbox Live Silver users will be able to play multiplayer games like Xbox Live Gold members every weekend. However, Microsoft plans to allow Silver users to play multiplayer games online on special weekends similar to when HBO has free programming weekends.

So basically as a Silver Pack user you may only be able to play on-line two out of four weekends for arguments sake.