Milkshape 3D works perfectly for Model and Actors (via .X)

You should do more advertisement about your converters !!
they are really usefull even if you don’t have max
(80% of programmer are in this case i guess)

In fact it’s not as simple:
you must export geometry from Poser
you must clean joint name (py.script) (no space in, joint name allowed)
you must export bvh from Poser
you must import and rigg in mS3D
you must regroup all material once textured
you must export to HL2 SMD both sequence and skeleton
you must clear your model
you must import HL2 SMD and export to DX (not DirectX Jt)
you convert with a option (90% not usefull but…)

but still less than 30 minutes from Animated Poser to Animated .egg
(including texturing that was not done at all in Poser)
that should