seeing you're a family guy who most probably have plenty of kids at home, you might want to invest in a flash unit... (i.e, speedlite 430ex, 550ex or 580ex, or whatever series)

not sure how canon speedlites are, but it would be useful for indoor where kids like to run around and all that sort of stuff...

lens-wise, you need to know what kind of photography are you into... macro? landscape? portraits?

This post has been edited by wlcling: Aug 13 2007, 01:11 AM

you can go third-party, i.e, Metz which should be cheaper

However, I have no experience with third-party speedlites ... so can't comment on performance nor price