Thanks for the comments guys.
I'm quite happy with #2 as well, the fisheye added something to it. I have the same location captured with the 18-70 and it lacks something in comparison (and it doesn't have a duck... could that be it?

)
#1 - I like the DOF effect you can achieve with the 80-400 @ 400/5.6 near it's focus limit.
#5 - Stubbsy, you've picked what I was trying to do - build some sort of compositional theme out of the chain leading into the keep out sign.
Craig - the different perspective... well, you see I'm a bit different

. It wasn't really a selection thing, most of them just turned out that way...
D.