Hi steed,
I'm sure you will like it here. My stepfather who is a British moved here 18 years ago and have never been back to the UK. Though he got some properties that are on let. The town they living in with my mama just turned into city. But the cost of living, since it is in beautiful island of Cebu is low are between 15,000-20,000. But if you will be driving and going away a lot during weekends to keep you busy then it will be 40,000-100,000 depends on your lifestyle of course.
Life in the city can be expensive, crowded, noisy and hmmm polluted too whereas 2-3 hours from the city can be a total paradise.
Employment is not a good idea here, business is subjective and depends on what you are passionate about but consider not doing it as it can be so risky.
A friend of mind is with her partner for some years now and they built a house in one of the subdivisions here with great view and a pool. The business they do is they invite europeans to stay in their place at cost for lodging, food etc which can be long periods or short. They act as tour guides as well, taking them to various beautiful places and islands. So I think it is one of those safe business, like building an apartment and rent it out, or guesthouse, online related work.
I've seen how my parents struggled business and investment failures here and it is a good eye opener to me specially I am married to my loving husband whom I truly care about.
Stay with this forum and you will surely get some more ideas about moving to Philippines.