About ten years ago I paid a place to transfer some old super8 to VHS. Their price was good, but all they did was set up a projector and point a camcorder at the screen. Which was good enough I guess (the quality of the films weren't that great to begin with).
msuper69 is right...a film chain would be VERY expensive, and if your movies aren't that good to begin with it's kind of overkill. I would, as he suggested, just invest about $600 in a DV camcorder and try to convert these youself. And when you're finished, you'll have the movies and a brand new camera to show for it.