Check these out, can not be beat for the price.
http://www.servocity.com/html/hs-564...al_torque.html
One thing better about Digital servos is that if there rated at 160oz of tourqe that means they will hae 160 oz's of tourqe all the way through the entire throw range unlike normal servos.
Normal sevos would only have 160oz's at the full arm deflection.
If im wrong please somebody correct me, this was one of the advantages i read in a servo shoot out