If you go thro' Ek, its 5000dhs per year for the visa alone, plus health card plus flight home every one or two years, plus 800-1200 dhs per month so 1700 dhs per month all in looks spot on.
I think the figure of 750dhs looks a bit on the low side, maybe part time 3-4 hours on a couple of days per week would be about 750...
Schnowzer's figures look pretty good all round cant really argue with any of them, although I pay about 350dhs for TV as I have 2 packages to get the channels I want and my kids are a bit young for entertainment but they cost in other ways.