As for buying gear I would do it in this rough order:
- Mask and Fins. Can be used for diving and snorkeling.
- Dive Computer (you need to understand how it works and what it is telling you. Rental computer display different info. Some divers wear a dive computer and have no clue what it tellkng them) usually a $10 per day fee. Light and small. Around $200 entry level that will do everything you need. I don't like Suunto personally. Mares puck
The scuba diving computer Puck Pro + is the evolution of the previous model Puck Pro. Ultra flat design for a perfect fit. It can handle multi-blend dives with up to two Nitrox blends. T
www.mares.com
Or my computer large display
Quad, multi-blend, large-screen scuba diving computer. Extraordinarily clear display with large-format data, two customisable fields for auxiliary information.
www.mares.com
are options among 100's of other.
- Exposure suit. Most dive shops only rent shorty. Needs to fit diver for proper operation. I don't like wearing other people's pee'd in suit.
- BCD. Will last 10+ years if properly cleaned after dives and and end of trip. Heavy (6+ lbs).
- Regulator. It is life support equipment and needs to be properly maintained. Some require annual maintenance, some have 2 year maintenance interval, some have 3 year interval. This cost about $150 per maintenance interval (~$50 per primary and secondary each) for maintenance of primary and octopus regulators. Hoses should be replaced every 5 years or 500 dives or when visible wear. Diving 5 to 10 days a year does not pay to have own your own Regulator. Diving more than that pays if you have a 2 year or 3 year service interval (ie Atomic). Heavy