OK, I know this will sound like an idiotic question to lot of you but Im clueless. I want to set up wifi in my house. Currently I have highspeed internet through Insight (over cable). My computer is hooked up to it via cable modem. I just ordered a MBP and will be buying an iphone so I'd like to switch to wifi. I'm looking at Netgear WPN824 wireless router. 1. Will this decrease performance at all? 2. Is there any other gear I'll need? 3. How do I set it up so it has security on it and I'm not providing wifi for the neighborhood? 4. Is this a plug and play type thing or does it require a fairly knowledge intensive set up? Thanks for your time.