Dear essech,
You can't get a good rate if you go directly to Shipping company like DHL, ARAMEX, TNT etc.
They treat you as a retail customer.
But if you commit them good number of parcels every month and become their CREDIT customer, then you can bargain a very good price.
Since your International parcels would be occassional right now, I would suggest that you deal with you national courier company for International packets too.
These national Courier companies have tie-ups with BIG players and are able to offer good price.
I am dealing with Blazeflash, professional etc. and they charge me around Rs. 515 for a 500gm Non-dox packet to USA. For additioanl 500gms the charge Rs.330.
Hope you will get a fair idea and you would be able to crack a good deal for your International shippments.
regards
IndConcepts
.
best regards
Umang Midha