With today's new product announcements I am considering either a new iPad or iPad mini to replace an aging laptop. My three kids would use this new device primarily as a browser and media player. My question is what is the best way to have our back catalog of DVD movies accessible on the iPad/mini over WiFi? I know enough to RIP/convert to mp4 and move to the device, but I would like to store these mp4's somewhere central so that the kids can stream to the iPad, and future iOS devices. Do I need to buy a media server of some sort? I have a PC, but don't want to rely on having to turn it on. I'm new to this whole area, so be patient with the noob !!