Anyone know of any examples of shaders that do both translucency/sub surface scattering and transparency?
Never mind, looks like Chickens Shader Bundle in the asset store does it.
You can find lighting functions in my “Aubergines Shader Pack” in the store. With these, you can turn any shader into anything including those you want.
also its half price until the end of this month.
I’ve got a translucent shader here, shouldn’t be too hard to add transparency to it.
And it’s free 
http://www.farfarer.com/blog/2012/09/11/translucent-shader-unity3d/