I've just come across the music of Leonardo Barcellos (who's also on MySpace). He covers many well-known modern songs on violin, flute, and other instruments. Here's Led Zeppelin's 'Stairway To Heaven' on acoustic guitar, flute and violin.
And here's the traditional English ballad 'Scarborough Fair', with balletic accompaniment.
Finally, one of Barcellos' own compositions, 'Oriental'.
Interesting and pleasing listening. You'll find more of his music on YouTube.