I was at a Metallica gig a week ago, in Dublin, it was brilliant... Cyanide sounded fantastic live. The only crap thing was that some dick in a mosh pit stepped in on the side of my ankle and sprained it, and I was in the first aid tent when they played One, and it's my favourite song of theirs. Still totally epic though, and I caught one of Trujillo's picks at the end
Tenacious D were supporting, that ruled too. ~30,000 people singing Double Team was one of the best experiences I've ever had.