I am coming to Bonaire in September, and I need to rent most equipment (I have snorkel, mask, fins). I'll be staying at Capt. Don's Habitat. Do they have good rental equipment? Is there a better place from which to rent equipment?

They have excellent rental equipment. You won't find better. Besides, it is more convenient if you decide to exchange. If you have something specific in mind, e-mail them ahead of time. They may even rent underwater cameras and movie equipment by the day. Pretty cool!