Cathy,I am upgrading,this yr from 350,to a 5D.Reason, Good reviews,35mm format,12.8mega Pixel and 810g.It cost much more than the 30D but it probably be the Last Camera I will own.I wanted a EOS 1Ds-11, but too expensive.You have to ask yourself, what do you wan,t to use it for? Good Luck in...