i felt isolated when we moved to hong kong i had a month old, a husband that needed to start traveling to australia immediately, and just did not know anyone yet!
do it! it gives such a wonderful perspective on the world. we have lived in amsterdam and zurich as well....and may very well move to anchorage soon!
i am so happy that you found that expat community. i have often thought about moving abroad, and i am glad that you adapted well.