Going Rate for Jack-of-all-trades?

I consider myself to be s skilled individual who has completed a B.Comm Hons in Sport and Recreation Management from the University of Pretoria. After 7 years' experience I have just started my own CC and will be offering a wide variety of services to another company at an hourly rate. These services will include various graphic design jobs, project management documentation, branding co-ordination, drafting of Business Plans and invoicing control. All these functions will be performed by myself and I will not be outsourcing any functions. Could someone point me in the right direction rate-wise please?