Rent - 3000rmb, each meal 15-20rmb, coke 8rmb for the big bottle, taxi fare - 30rmb average distance, nice dinner at restaurant for 5 people - 300rmb.

I wrote an article about the cost of living in Shenzhen a while ago: http://www.startinchina.com/shenzhen/life/cost_of_living_in_...