STF, there are a few airlines in Aus who ask for full length photos... QF and National Jet to name two...
As for medicals, I have been weighed at all my medicals, they never made a big deal about it though, I think it was more to see which lung capacity category you fit into than anything else. As my capacity was a bit low for someone my age and height, then she checked my weight and said 'ah, it's fine for someone smallish like you'
