Why should I fuck 40d? I guess it's the most common camera I see in the photo pits here...! also 40d has a much wider iso range than 400d or 450d (Auto, 100, 200, 400, 800, 1600, 3200 (H) VS. Auto, 100, 200, 400, 800, 1600).. and said that concert photography requires at least 1600, then 40d would be my choice? awaiting for some more advice from both plintus and ufomagnet. tnx.