Ken,
These guys write a lot about Belize. �You should be able to find some good info on the website:
http://internationalliving.com/
I recall them saying that Belize is mostly English speaking, and I got an email posting from them just today about Belize......I'll forward it to you.
Bon Voyage!Anthony'89 Syncro GL (Hidalgo)

--- On Mon, 12/6/10, Ken Wilford <kenwilfy@COMCAST.NET> wrote:

From: Ken Wilford <kenwilfy@COMCAST.NET>
Subject: Advice for traveling to Belize
To: vanagon@GERRY.VANAGON.COM
Date: Monday, December 6, 2010, 8:21 AM

This does have Vanagon content as I am
 traveling to Belize in order to
fix a customer's Vanagon.� Isn't that cool!� Anyway my wife and I will
be traveling there in January and I wanted to see if anyone on the list
had any advice about this country in particular.� I know there are
several folks on the list that are globe trotters so I would appreciate
any advice or hints you can give me that way.� I will take the advice
off the list if the Moderators don't feel this is enough Vanagon
related.� I will be driving a Vanagon there as well so it is very much
Vanagon related :-)

If you can give me any tips or advice I would sincerely appreciate it.

Ken Wilford
John 3:16
www.vanagain.com