What do I carry
Well let's start at bags
I use a lowepro stealth reporter 550 and a lowepro computrekker plus aw

My 550 is my goto street bag it carrys
2 Canon 30D bodies
With battery grips
a canon 16-35mm L
a canon 24-70mm L
a canon 70-200mm L
2x 580ex flash heads off shoe camera cords
a custom brackets mini rc flash bracket
8x4 sets of double AAs
8x 4gb lexar cf cards
4x 8gb lexar sd cards
a Lexar pro usb reader
a cullman mini tripod
a flash ligh
a small screwdriver
A lens cloth and fluid
8x camera batteries
x-rite color checker
x-rite white balance jvc ms120 pockt cam
Business cards of course
That's all I pack in the shoulder bag on big trips t both bags go and the computrekker plus get filled with

No bodies in this bag
a canon 300mm 2.8 L
a canon 180mm 3.5 L
Any where from 2-6 Lacie rugged 500gb drives for on location
All of the needed chargers

3 pocket wizard multis
Arca-swiss Z1 DP head
With plates for lenses
A bubble level
Lumedyne mega cyc

The non photography gear when traveling long distances for jobs like flying I take these to bag as carry-on and nothing else these just fit under the size limits

But I would also pack a northface jacket a few pairs of pants a few shirts a hat and glasses

I think that's about it that is our goto system
What goes everywhere with me

Good luck in your work
I want to read some more of these in the future