Pack to Shoot!

Canon EOS-40D, EOS-350D and EOS-20D (used to take this photo)
EF16-35L F/2.8, EF-24-105L F/4 IS, EF100 F/2.8 macro, EF70-200L F/2.8, EF50 F/1.8 (used for this photo).
Two Canon 580EX II flash units, one 550EX flash (used for this photo).
8 camera batteries with travel charger (car/socket)
16 Maha PowerEx 2700MaH AA batteries for flash.
Lowel ID Light with modified Li-ion battery system (not shown, it was charging)
Think Tank Modulus system with Pro Speed belt.