Just a couple -a -things come to mind and then I'll let the other members jump in with more ideas.
I'd suggest taking at least one advance trip over more than what you have indicated just to get a better look before the leap.
I think you are right on with the idea of Subic Bay area. Jon 1hit a lot of the high points and living there would be most enjoyable.
Clothing Etc: For your wife there is probably no problem in buying local. But for us guys there is often trouble finding larger (foreigner) sizes in many places and stores. That especially includes shoes. So bringing along as many good pairs of shoes and sandals is important.
Nothing I can think of I miss from the States really or wish I would have brought along.