Not that I am averse to spending a few hours listening to other music - the main stage line up is as follows (in reverse order)

Red Hot Chili Peppers
Foo Fighters
David Gray
Placebo
Neil Finn
Idlewild
Powderfinger

Don't know Powderfinger or Idlewild but love Placebo, Gray and the 'Peppers. Neil Finn was good with Crowded house - don't know him on his own and what I have seen of the Foo Fighters looks good.

On reflection. Sod the folk music. Rock On! Now where's that bong.....;-)

Cheers

DtG