I've got two objectives here...
First: I'm trying to find a way to send the SAME music to AirTunes as is playing out of my iTunes speakers (I understand issues with lag and stuff, but what I'd want is the same music playing in different rooms...so that's not a huge isse). Currently I am able to play music on both by opening iTunes in a different account, setting one to my computer speakers, and the other to my stereo speakers...but they aren't playing the SAME track. SO, with Nicecast I could (I think) set iTunes to send music to AirTunes, set Nicecast to listen to iTunes, then I could use realplayer or something else to listen to the stream on the computer speakers--all from the same account. If not from the same account, at the very least I could do it with iTunes in two different accounts.
Second: It would be nice to access (later on down the road) my music from elsewhere (such as the office)...but this is secondary and not my primary objective at this point.
Objective 1 is to get a stream going FROM iTunes...
Thanks for the assistance!