if you're using kontakt already id check out the following libraries
bela d media - spiritual wind (awesome ethnic woodwind library with great key switching articulations)
cinesamples - hollywood winds (orchestral woodwind ensemble patches with super realistic trills /runs etc)
westgate modulars -clarinets/basoons (super fine orchestral woodwind instruments)
or for non kontakt users
wallander instruments-(awesome but pricey)
best service -desert winds.
these are all excellent and a country mile better than any of the corresponding nexus patches.