Considering the choice of job and area 1000 a month is less than could be expected. I think you need to re read and see that i accidently put a week not a month. The rough figures i have are from talking to people i know and meet who work in that field from office workers to what might be called blue collar workers in the support side. For example he may suprise you but the figure i came up with is what we live on minus the extra for my wife. Guess what we live on the outskirts of london.