You have the foot stuff under control from the sounds of it. YOu could also have some forefoot posting as Knott suggested.

I would also focus on external rotation stretches for the hip, sitting cross legged on the floor and pushing the knees down towards the floor would be a good place to start and the clam exercise for strengthening of the external rotators is a good idea. I'll try to post a link later but if you google "clam exercise" you'll get lots of hits.