Some great suggestions here. If you are talking Nick Cave, you can do a lot worse than have one of his solo sets. He has played some amazing shows with just a piano and some occasional accompaniement by Warren Ellis.
And as for Black Mountain - absolutely. Their "In The Future" album is going to be very hard to beat as album of the year, even though it is very early days yet.
The Super Furry Animals would be at the top of my wish list, and they're there! An Acid Casuals 'Som Bom' in the Rumpus Room. Neon Neon Cate Le Bon Susan Christie 9 Bach Euros Childs Heather Jones Meic Stevens Hayseed DC The Alabama 3 The Beep Seals The Loungs Lemon Jelly/ Fred Deakin B-Music A reformed Zabrinski The Flaming Lips Steve Hillage Andy Roberts Hawkwind Christophe Goze Al-Pha-X The Threatmantics and Rolf Harris.