We just got a beautiful 42" LCD TV and I really want an ATV, but I don't know much about how they work. I have a first generation iPad, and an iPhone 3GS, and an old iBook G4 so I'm not unfamiliar with Apple. We have Wifi and that's about it. My iPad has OS 4.3.1 and am curious if I can do AirPlay? Please don't be too hard on me as I am new to all of this.