Alex,
MyUS say they have free consolidation.
Given I was paying
Shipito $8.50 per package plus another $8.50 for a special request (my orders wouldn't fit in a small box) = a minimum of $42.50 per shipment, even if MyUS shipping rates are more, I will probably be better off.
The only thing is that they don't have TNT, who tend to be cheaper to my country than DHL or Fedex.