The signal is decent, at least right now, but I'm still at pretty much the maximum range for the transmitter, so it's easy to interfere with. I should probably just break down and get another 40' of RCA cable and plug it directly into the stereo, but for now, I have a workable solution.
So, that's one less thing for me to stress about this week.
Now, on to the other things to stress about...
Edit: I just realised tht I've also got enough cable to put my video display onto the TV... if I can get a fancy winamp plugin to display over that, with the music split...