PTHiTunesNotifier workarounds
Always good to have new options! I've been happy with PTHiTunesNotifier myself--very customizable, with nifty animated overlays that pop up for a moment to announce each song.
In Panther, though, there's no visible effect when you right-click to get to the PTH app's menus. Not a killer problem: there are only two you need. Right-click, then hit Command-Comma for prefs, or Command-Q to quit. (In Panther, you must sometimes Quit it to stop iTunes from re-launching once you quit iTunes. iTunes doesn't launch the first time without you wanting it to, though--so again, not a killer for me. Hey, it's free!)