It's a great bag! Can get a bit heavy, but the waist strap helps with the weight distribution. We took last august:
D200 w/ 18-70mm
70-300mm
speedlight 800
extra batteries
lens hood
There was still a free compartment, I think, in the main body, and definitely space up top in the little section. DH says that we will stick the new HV20 up in the little section...