Diving in Vanuatu

We are planning a 10 day holiday in Vanuatu in June, and having just made the bookings for flights and accomodation are looking for information on diving around Port Vila and Santo. Any recommendations for diving companies would be greatly appreciated (we are experienced divers). Thanks.

Santo diving info - see the Service Providers link for a list of (the few) local dive operators.
Allan Power's seemed to be the most popular one when I was there.

I can also recommend Aquamarine. I spent a few months living and working in Santo and dived with them a lot. The guys and girls working there are a good bunch to hang around with too. Their website, should you want more information, is http://www.aquamarinesanto.com/