[GadgetKen]

Because of the tight timeframe (1 week) before you leave, would suggest you perhaps try a US reseller of sim cards that can overnight the sim card (or cards) you need and set up a callback service for you so your family can reach you via a US number. Two that I have dealt with are Telestial Telestial link in California and Ekit in Boston (discounted if you go through the communications section in Lonely Planet's website Ekit link ). You may want to call or email either to discuss your telecom needs and see what their best solution would be. I'm sure other PPGSM members can think of other good US vendors that ship quick. Because of your itinerary, would suggest perhaps an international call back sim card or cards, and possibly also an Iridium satphone rental for the 2 tough coverage countries you mention. Would also strongly suggest trying everything out in the US before flying out to make sure everything is working properly and you know how to use it (even if using an international sim in the US means you have to pay for a few minutes at a premium rate). Have a great trip!