FREE - TurboTax Business and TurboTax Home & Business
With TurboTax Business there is a charge for Business State Additional Charge & eFile Additional Charge (whatever that means). However TurboTax Home and Business also appears to be free as well with free efile included.
TurboTax Business: http://turbotax.intuit.com/small-business-taxes/business.jhtml
TurboTax Home and Business: http://turbotax.intuit.com/personal-taxes/online/home-and-business.jhtml
K8