As part of the programme, it revealed that apart from the well-known classical renditions (of which Janet Baker's must surely be the best) there were versions by Alison Moyet and Jeff Buckley.

Now Jeff Buckley's name is known to me but I had never heard any of his songs.  A quick Google for his version of Dido's Lament revealed his performance at the Meltdown Festival in London in 1995.  Quirky but phenomenal.  The fact that he claws for the high notes is painful at first but the genuine emotion of the performance is clear.  

See: http://www.youtube.com/watch?v=MxBKtqSha4w and plug in a decent set of speakers.  Sadly I can't find an MP3 download at present but I'll keep looking.

A search for further Jeff Buckley tracks revealed his version of Leonard Cohen's 'Hallelujah'.   Even better than Cohen himself.  Find it at: http://www.youtube.com/watch?v=HKnxmkOAj88

I'm off to iTunes to get Buckley's LP 'Grace'.