I know that body fat is not accurate via the resistance method but I need something with quick and rough numbers. What scales do you guys use? What do you use to measure body fat? I don't want to spend too much (much more than $50) on them either. Here is the one I am looking at: http://www.amazon.com/exec/obidos/t...2152?_encoding=UTF8&m=A12IO5KBJD6301&v=glance Any thoughts?