Taking a 3 week trip to Australia and New Zealand and will have to call the U.S. at least a few times while we are there. Our cell phones (LG's, currently using SprintPCS) are CDMA and we have read that is the wireless network Australia uses as well. Can we get a temp wireless plan through an Australian or New Zealand company for while we are there? If yes, is it worth it? Should we just get an international calling card?

Thanks for your help.