I have an internet connection on both my laptop and desktop through the same router. I do not wish to screw that up. All I want to do is transfer files from the desktop to the laptop via the wireless connection. How do I do this? I have never set up any kind of network or lan before.. wired or otherwise. I have read a bunch of post on the net but I am unsure the best way to do this. it's confusing to me as there seems to be lots of different opinions.