A group of guys got together a while back and commissioned a limited run of Cadian females (Plastic). I saw some on Ebay a while back and they were excellent. You could see they were female, chests bulging under the flak Armour, wider hips, excellent heads. I instantly wanted them, but unfortunately the last time I looked they were going for £100 for ten figures!
Never seen any since.
Forgeworld should be doing exactly this sort of thing.