[villagetinker]

OP, if you contact Sumter County building department, you should be able to get your house plans emailed to you. From these there is a key chart that will tell you the type of box, and the wiring to the box. If you are lucky, your house will be wired like ours, there will be a cable with the 3rd RED wire between the fan box and the wall switch. This will allow the installation of an off the shelf, fan control switch for both the light and the fan speed. Since this does NOT involve changes to the actual wiring, this can be a do it yourself project, or your basic handyman.
The biggest concern is to make sure the boxes installed are suitable for ceiling fans, if not, then I agree with the previous comment that your will need a licensed electrician.