I am very dissapointed with Lowpro, I recently picked up the Pro Trekker from Adorama.
I had a good look at them all, as one would when you pay in the shop's here about $550.00.
I did much better than that when the dollar was good a few months ago.
The add's showing the bag showed a 400 2.8, two bodies, about six or eight lenses and a bunch of other gear.
BULLSHIT!!!!!!
Mine is bursting at the seams with a 400 2.8, 17-55 2.8 70-200 2.8, two SB800's, one SB900, a D200 and a D300. There is no storage for cards or batteries, I am waiting for the zip's to let go. The back pack that comes with the bag is chockers as well!
Have a good look before you buy Lowpro, I have one Tamrac Pro 12, I should have looked at Tamrac's other option's