Granted the sea life is amazing, but there really is not much to do in Bonaire. Make sure you do some good research before you decide on it. I personally would go crazy there for a week.
If you are looking for sea life with a little adventure, go to Curacao. Basically the same water and sea life but more to do when you are not under water. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />
We love Bonaire for the diving and snorkeling. The island is laid back and rustic which we like. On our last trip we stayed at Bamboo Bali which is a beautiful little oasis that was great to return to at the end of each day.