You might check out this site: http://hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8496
The website is pretty good, and those particular servos should give you ample torque if they fit within your design.
(I don't know about these servos for quality, but due to good reviews and good pricing, it might be worth it to try 'em!
Oh and I recognize that they are not Hitec, but can you afford the difference? These are about 25 + shipping, 33 kg cm (457 oz-in), the corresponding hitec would be the HS-7950TH which will run you around 149 ish
These are bigscale servo's, meant for 1/5 scale RC cards. The servo itself is almost 8 centimeters long, which is HUGE for a hexapod servo.
This is absolute overkill. 12 of these will make the pod over 1,5kg heavy without the rest of the materials, and you will not need 33kg/cm.
Hitec servo's are awesome but expensive.
You can just as well fit some higher torque Futuba Servo's, even Power H-D servo's will do (that's what I'm going to use for my pod, cheap and pretty good specs).
Just be sure to take metal gear servo's from a known brand (No Towerpro, they will make you go crazy with burning out and jittering when they do work).