Hi Cal,
I'd download it. I have it, and, you can also upload songs from your CD to your Computer, so you can trasnfer them to your Mobile Phone (Or Cell Phone, as you say over there), MP3, MP4, whatever really. It's a great way to "Move" your music around. It's also nice, since you can keep Full CD's on your computer, thus meaning you can listen to them all while have your CD Drive free, and being able to hear CD's one after the other.
I'd certainly download it. You mentioned about buying songs, you don't have to - You can do what I said above. The Buying Songs bit of it is where you can buy songs online, and just keep them on your computer, or burn them to a disk, But I don't bother, I always buy CD's, I always like to be able to "Hold" what I buy, as well as being able to have a "Backup" of it.
Kind Regards,
Jack.