Anyhoo... Cassimer, I've got a mate who has an iPod Shuffle. It is seriously funky! For the price, I really recommend that you do get one... it works well as a USB flash drive, and is very easy to use (switch on and play, plug into computer to download new tunes).
The only problem with it is that it is difficult to chose a specific song to listen to - but then, that't pretty much the whole point.
Just to add to dafyd's excellent answer. I bought my daughter one for her birthday. She loves it, it weighs almost nothing and because it is not a hard drive (like an iPod) can be used when exercising vigorously without any problems.
Well I've got a thing to add. They are crap. They might look nice but because they don't have a screen it makes it really difficult to figure it out if you have problems. I got mine for christmas and had to send it back as it was faulty and completely useless.