Shoutbox

Nokia phones generally come with software on cd called "Pc Suite" which  allows heaps of cool features via infrared (assuming ur pc has infrared (both laptops here do)) look for one of those little squares like on your tv remote controls.

You can backup your phone contents (msgs, phonebook, calender, reminders etc) transfer pictures and photos to phone as well as a sound converter. This lets you get midi files of the internet of your favourite song and convert them to ringtone format (3 channels i think) and then transfer over infrared to the phone.
And the best thing about all this is that its FREE!!