You are correct, Bushfiva, it is the GSIII I am waiting on. I avoided that info until now to keep the "fanboys" out of this because my quest concerns which piece of kit others have tried regarding the use of the LTE versus HSPA+ networks, and how one might be better over the other.
The specs for the HSPA+ version seem at initial glance the one to get but if there are issues using one designed for HSPA+ in the LTA area, then it might not warrant the quad core. This will depend partly on replies from people here who have experienced one "network set" versus the other.
As I said, I travel between both regions frequently so I need to make the right choice for which "base" unit I get.
And whichever unit I choose, it will be an unlocked one so I can drop in a sim card (micro-sim, from what I read!) wherever I go to pay local data-rates with no worries re system compatibility to my "home" network.
Thanks for the replies so-far, everyone.