Thanks for the reply - interesting.

I have since read that the mount (and not the housing) is the crucial factor and both the EOS30D and the EOS350D share the same 'metal' housing hence the weight of the 100-400mm canon lens should not be a deciding factor betweem the 2 cameras.

As for the last reply regarding better images from a EOS30D as opposed to the EOS350D , I think I will stick with my EOS350D unless anyone reading this forum can suggest a good enough reason to upgrade (seen as 99% of my shots will be wildlife based), i.e. pretty much static!

I appreciate your thoughts?

MrShabbs