Second that directive- if the thing fails completely, it's very very ugly to get it apart. Dynamite won't be sufficient.
Seriously, it involves drilling hardened pieces out of the steering column. And THEN you need a new lock cylinder. The thing does come apart much more readily if the key can still be made to turn it. Don't wait until it won't work anymore.
One thing you'll see is that the key wears out on its sides- a new key blank is a partial cure. See a locksmith or a different dealer- some have the machine to mill out these keys. They are basically the same as a 960, 850, or S/V70 key. I have not seen the stuck-lock problem on the newer cars however, so I can only hope they solved whatever it was.
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Rob Bareiss, New London CT ::: Roterande Fläkt Och Drivremmar!