This is the original AV schematic I produced for a house that fell through after our offer was excepted. The general principals have remained the same although I need to update a couple of items. Before we go any further I know this is nerd-tastic but there is nothing like a good olde schematic to help you remember all the cables to run.
Little did I know at the time the importance of considering power!! Have just spent the weekend installing a new ring main just for the media centre PC, bedroom TV and projector! A lot of effort just so I can watch TV in bed without having to stare at power cables.
I will update this schematic and repost it as soon as I get a chance.