Just an update to tonight's CPD. We didn't get much of a chance to fully explore audacity due to time constraints, but please download it and have a play around- It's really very simple to use and in my experience, the students really enjoy using it. In answer to one of the questions (one of the music sites wasn't working properly), it might be worth trying podsafe. I don't know if the school has this blocked, but all of the music is creative commons, which means as long as you attribute the creator, you can use many of the tunes for free in your podcasts providing you're not making a profit from them!).
Also, for the Nokia N73, you can search on www.my-symbian.com or www.allaboutsymbian.com and download freeware, so you might find some software that will allow you to add something similar to a countdown timer.