Hi Sam,
I use Point in Space and Adatasol, both great host. Check out
http://www.fmwebschool.com the entire site is run by FileMaker.
Also, here is a small solution you can check out that I wrote in a
couple of hours for a photography magazine interested in how quickly a
site can be built with FileMaker.
http://www.fmwebschool.com/popular_photography/
Here is the source code for both the API and FX.php:
http://fmwebschool.com/popular_photography/API.zip
http://fmwebschool.com/popular_photography/FX.zip
The files are free and completely open
You may also want to check out http://www.fmwebschool.com/fmstudio.php
In Kindness
Stephen Knight