My Sigma 150/2.8 arrived the other day and this is the first really decent shot with it! I'm very happy with the lens. Only the 17-40 has exceeded my expectations like this one has.
Long focal length macro lenses do take some getting used to and this one is no exception. I used a monopod, a Delta flash bracket and 430EX flash - pretty good-sized rig.
I'm looking forward to many days of shooting with this setup!