SO after stepping up to the D3 I realized the Lowepro Omni wasn't deep enough for a pro/gripped body. Not without laying it down and having it take a huge footprint (an the dividers just wouldn't work)
So I looked around for another copy of a bag I once had for a short time - a Tenba Metro II. Found a Metro II P859 on eBay for $50.
Holds a TON of gear and is extremely flexible. Literally and practically. There are two "box" type padded dividers inside (a la Domke) One has a single divider wall with some smaller velcro dividers (room for 2 pro bodies) and the other one has four lens compartments.
The outside walls and bottom of the bag also have padding. You can remove the dividers and the whole bag stands up on it's own. (good for big pieces of gear like vid cameras)
Or, you can unzip four somewhat hidden zippers just inside the top of the bag and remove all the extra padding, including a plastic protective board in the back, and the thick padding piece on the bottom. This makes for a very flexible, hip hugging bag. (again, like a Domke...). The padded insert boxes are padded on all sides including the bottoms, so everything stays nice and protected even after removing the bulky outer wall padding. Sweet.
There is a hidden two-piece rain cover, one from the top/back of the bag that only covers and attaches to the top flap so you can still work out of the bag, and one from the bottom/back that wraps the entire bag completely.
There are a ton of discreet pockets, a removable top grab handle, removable padded strap, a top access zipper (so you don't need to unlock the whole flap), and pen/note holder pockets all over the thing.
I think it's just about the perfect bag.
It has swallowed (with room to spare):
80-200mm AF-S, hood reversed
28-70mm AF-S, hood reversed
Pocketwizard Mini, AC3 and 2 Flex's
Double charger and extra battery for the D3
20 AA batteries
AA battery charger
Bogen super clamp, ball head and camera mount
And there is still a bit of room to work in it.