"RustY©" wrote

My only advice would be to
avoid Sigma lenses and pay the extra for the real thing.

Yeah, already have. 17-55/2.8 DX, 70-200/2.8 VR (what a sweet piece of
glass that one is), the 300/4 and a TC-17 to add a little extra length when
required, with a D200 to hold 'em up. That said, I'm considering the Tamron
12-24, which has had very favourable reviews from the keen amateurs and
pros I listen to. Would love the Nikon version, but it's about 3 times the
price here...

Seriously, there's nothing wrong with Canon (as you well know). It's just
the Nikonite and the Canonian thing.

Keep making pretty pictures.

RobG