I can never be bothered listening to music unless it's on a stereo and very loud, I prefer to have the live gig DVD's on.
If I need MP3 on the move I can use the XDA, but never do, always busy doing something else, then again if you live in London, you probably want to shut the place out of your ears
I just bought a 5GB pocket hard drive, size of a yoyo for £67. Fantastic for backing up your computer easily, and for transporting lots of data. Works on USB, is password protected, and you can even load XP on it and boot from it in case of an emergency. Works a hell of a lot faster than these pen drives, and much cheaper per GB.