Wide Open West is a cable provider that is cheap in the Columbus area. Their cable has on demand services with pre-recorded programming, and the internet is high speed.
Having used Roadrunner and Insite, as well as WOW... in my experience, WOW is the one to go with for pure speed. Their prices for the bundling are 10-20$ cheaper than the competitors and their customer service is also very good. With all the competition in the area for providing these services, you luck out with them