we lug our gear around in the computrekker, which is mostly emptied when we get to the venue. I have the 5d + 70-200 hanging from me neck, with a shoulder bag (crumpler type, but smaller) to carry some spare lenses. I also have the 350d with a lens attached to it, but i mainly use the wide angle for creative stuff. Mrs also has a similar bag with the 40d + tamron 17-50mm and nifty fifty. Its tiring carrying all that, but this way we have ourselves covered pretty well.