DD1 - Dadda (with meaning) at 4.5 months. By 6 months she could say 5 easily recognisable words - didn't take any steps until she was 18 months though.
DD2 - Dadda again but at 8 months, only really just started talking well at 19 months. She couldn't get a word in edgeways with her bossy, chatty sister about. She walked much earlier than her sister though (probably as a means to escape the incessant chattering)