I got this lens in mid April to shoot youth sports, and after sending it to Sigma for calibration, baseball is now over. I shot all season with my 200 2.8 and got so used to the weight of the Canon lens that I just don't think i'm going to use the 120-300 enough to justify keeping it.
The lens is like new, I've shot a couple games with it only. There are no marks, scratches, etc. and you wouldn't be able to tell it from a new lens. Comes with box, all paperwork, back cap, hood, front cover, unopened strap, sigma case and even the plastic that it was wrapped in new.
US sale only, and I would prefer someone with good feedback here. BH now sells this lens for 2700 + shipping. My price is $2000 shipped by google checkout, which is $1900 net to me after fees and insured shipping.
You won't find a used 120-300 in any better condition. I've bought and sold quite a few things here, including selling 3 camera bodies and several lenses.
Fantastic lens for those of you that need a zoom for short field sports. Get it and a 1D body and for $2800 you have yourself a heck of a sports package.