I have just obtained a ATV2 which I have connected wirelessly to my Netgear Modem Router and can stream successfully. The router also has the facility for USB connectivity and I have attached an external 1TB hard drive which can be accessed wirelessly and wired (LAN) from both my MBP and PC. My question is, if I place all my media on the external HD, what is the best way to play that media (say iTunes downloaded films, rather than rented) on my ATV2? I have yet to try streaming from the MBP, if that is possible, but can some please help me out? I have attached a rough diagram of my setup to assist. The red line is what I am trying to achieve, hopefully wirelessly.