The brakes are Avid Elixir 5. The rear is screaming like a banshee at the moment but both are comfortably operated with one finger, which youtube tells me is important.
I've just googled, and the bars are these -
http://www.on-one.co.uk/i/q/HBELGUANB/el-guapo-ancho-b-handlebar - which I think fall into the "stupid wide" catagory. I'll see how I get on, but my elbow and shoulders are a little sore today and I'm not sure if that's exasperated by the width.
The trails where slimy muddy rocks, and I'm so used to aiming for flat ground on the roadie I found myself aiming for the edge of the trail, when the going got rough. Didn't take too long to realise that was a stupid idea and the bike was more than capable, and actually had far more grip, on the lumpy bits in the middle!