Sorry, currently only have a 60d + 15-85mm IS USM. So nothing heavy at all. I don't anticipate any heavier purchases in the near future either, only possibilities are a speedlight (which would probably end up off the camera) or a macro lens (which I don't expect to be significantly heavier than my current lens).

Probably also worth pointing out that by stressing that this will be my first tripod, I mean I don't want to spend a huge amount to find I only use it the once and then it gathers dust in a cupboard.