OK, not new, but I got a pre-loved example earlier this week! 
It's the non-IS model (with 8 lens elements instead of 15 in the IS model). Optics are absolutely pristine, as it's always had a protective filter on it. The thing doesn't even have any dust inside it, which surprises the hell out of me, as it's so hard to buy a clean Canon lens these days! 
It has done lots of work in the last two years, but was well taken care of.
I hope it's got another few years left in it..
