It's a couple of years old but I've probably only ridden about 200 miles on it in that time.
I got the '53cm size' which turns out to have a 56cm top tube. I ride a 54cm frame, so it's simply too big for me. Despite trying a short stem and everything, I've got to admit that it's just never going to fit me, so it's going (and I'll probably get another Salsa to replace it). I fitted a King Headset, so I might as well leave that in, eh?
Details are here: http://salsacycles.com/bikes/casseroll_double/casseroll_frame/
Collection/meet in layby preferred, but I can box and post if needed.
Cheapest I can see them new seems to be £399 f&f
Frame, fork and headset: £300 - or £299 if that makes it sound better.
Email me for details