I have a Lowepro CompuTrekker Plus AW - I manage to fit a 5D with lens, 350D with lens, 580EX flash, Dell D800 Widescreen laptop, laptop charger, several sets of Energizer rechargeables for the flash, fast rechargers (car + 240V), spare camera batteries, portable storage device, backup card reader etc, etc plus all of the little bits.
It weighs a ton but its safe storage when the kit is not in use. There are plenty of options for the main compartment and there is a way to store your pod on the back of the bag.
As said before though - try before you buy.