No timer fonction on the BS2300 ? It came on a later release then, because BS3000 ou 3200 has one really great (multi timer, day included, possibility to adjust an automatic standby for each individual timer, like the BC2.
Maybe Beotime is made for you, it can start whatever you want (radio, CD, TV) remotely, it does not have the same capabilities that the BS3200 or BC2 have, but it starts your source on the channel you want, stop it after a period you indicate on it. It is running on battery, so no problem in case of power down or whatever. Multi timer programmation, and dates/days timers programming are not possible, which is a shame for a product dedicated to that.