An audio track of Mark Knopfler's isolated guitar from 'Sultans of Swing' has been making the rounds on the internet the past couple of weeks. If you haven't heard it yet, it is well worth listening to.
I also included an awesome live version of the song that was filmed at the Hammersmith Odeon in London back in July of 1983 that you have to check out. The Alchemy: Dire Straits Live album and concert film were both released in 1984.
The live version can best be described by this comment on the video over on YouTube:
I listened to this at 3 am.
My neighbours called the police.
The police arrested them.