As far as I can tell - now using iTunes 5.2 - if I open iTunes and, in list view, simply start a song from the main library list somewhere in the list, and do nothing else but scroll away from that song to somewhere else in the list, the main window will jump back to the next song that starts playing when the song I started ends ... this is exactly what I don't want iTunes to do.
It seems to me that both Chris and Tracy provided a way to deal with this. I think it is fine to have the same thing described different ways, as peoples minds certaintly do seem to work differently.
As far as being able to go back to the current song playing at any time I want, there is a simple menue item that does this - which is a good feature - and to my mind, does the very same job, but at my command only and not automatically by the software. The menue item is -> Controls -> Go To Current Song.
Personally, I would prefer if iTunes stopped doing this automatic action so that absolutely no extra effort was required to avoid the issue - although the DJ work around doesn't sound super complex or anything.
I actually never new a Mac-mouse could ever be used to right-click until just a couple days ago - by pressing the control key and click mouse combonation. So I have been a bit at a loss regarding a part of the above instructions. I assumed I just didn't have that funtion available on my system. I'm kind of suprised I've used a Mac for so long not knowing about that.