Torque wrenches are very useful for bottom bracket and crank arm installation since the recommended torque values are much higher than most installers would provide without their guidance. And, no there are no bike specific brands. Craftsman torque wrenches from Sears are fine and even those from Harbor Freight are adequate. Beam-types are cheaper and more rugged.

The recommendation for using a torque wrench on carbon parts is to avoid too much torque for the small bolts used in their installation. In the case of bottom brackets and crank arms they assure enough torque.