simultaneously playing music (sync two room's sound systems)

living in a dorm, i want to have a single source of music play on my sound system and my neighbor's sounds system. my question is how? i was thinking you could do it over a wireless connection that both our computers are connected to. just have one itunes play over both rooms. any ideas?

Apple AirTunes will do the trick. you'll need one of these for each stereo. my friend has this so she can stream her iTunes to two stereos wirelessly. thru iTunes, you can choose to stream to one or the other stereos, or both at the same time. pretty nifty.

http://store.apple.com/1-800-MY-APP...c_accessories/airport_wireless&nplm=M9470LL/A

Yeah that would work nicely. but is there a more generic way of doing it. i mean i really dont feel like dropping 100 bucks for one. i have been messing around with ideas. like vlc can stream music over a network but its not really in sync its just off by like a second! (sooo close) i've been toying around with fm transmitters (not the best of quality) I mean there has to be a way to put music over a network like vlc except have run simultaneously with the source. (this operation has to be wireless) like maybe wireless av boxes on ebay i seen.