Hi - Welcome to GoMorocco.com, I'm glad you found the price list useful
The apartment rental in Casablanca depends like anywhere else on the location and size of the unit. Like MrRight mentioned it will varry from $200 to $2000.
About the utilities, for standard use I will say the water and electricity bill will range between $20 to $300 Dhs, Internet access depends on debit/pack you will get, between $10 to $40.
I hope this helps and feel free to ask any questions in the correspondent forum.
I wish you a happy experience and Welcome to Morocco!