There seem to be two schools of thought about moving to Belize.
One is the traditional wisdom, that you should go slow, visit a few times, rent before you buy, keep lifelines to back home, that sort of thing. That certainly is the rational, common-sense approach.
The other is to just jump in and cut your ties to your life back home. The idea is that because you are risking more, you will work harder to make it work.
I have seen examples of both approaches. Some have made it each way, but there are more folks who didn't make it in the second category. And they tend to take a big hit.
Not to hustle my own wares, but you might get a copy of my new book (should be available in libraries soon, so you can check it out for free). It's Adapter Kit: Belize, and is the only up-to-date guide to living, retiring and investing in Belize.
Books and publications by Lan Sluder:
Belize First Magazine http://www.belizefirst.com/
Fodor's Belize and Guatemala Guide
Belize First Guide to Mainland Belize
Adapter Kit: Belize
Fodor's UpClose Central America
Belize Book of Lists 2000