Thanks for the reply, Darrin!
So this really is quite confusing with some Sigma lenses, although there are quite a lot of HSM lenses. But not in the much sought after 18-200 or 18-135mm range! And the two lenses that you mentioned are not yet available in the European market...
Much easier to detect with Nikon lenses: AF-S = ok for D40(x), AF = not ok for D40(x).
Nikon is doing quite a bit to keep third party lenses out
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews
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