I'm currently using a Canon EOS 40D which I have upgraded from a 350D and the following lenses:

Canon EF 400mm L USM F5.6

Canon EF-S 55-250mm IS

Sigma 105mm Macro EX DG

Sigma 17-70mm DC

Sigma 10-20 mm EX DC

I also use a Canon 580 II, 430 EX II & Sigma Ring Flash, Bean Bag, Manfrotto 055XPROB, Mini Ball Head and a Dome Hide.