Stop, don't rush and buy gear. I rented for my first 46 dives and try out all kinds of gear. Try different gear at several shops. When diving with a shop you can request them to let you try one BCD vs another if that shop has several types or brands. You are fortunate enough to live in Florida where there are shops everywhere. Look online for reviews and customer experience, but remember to wipe off those complaining about color or how many D rings the BCD have. Take your time to evaluate what you really need/want and keep in mind the repair kits availability. For example all my regulators are Scubapro MK17 EVO. I can get repair kits for these, or buy the MK19 kits which are the same. You can always try and buy international (Italy, UK, Japan) and save some money now on purchase, but you will have to pay maintenance and repairs in US as warranty will not be honored.
If you were to buy now, I would recommend starting with a Scubapro MK11, C370, R195. Get a SPG used in great condition, and get a new computer that you can sell down the road before you go for the expensive one. The Mk11 First Stage Regulator is a good recreational regulator with a diaphragm first stage for use in temperate waters. Diaphragm-based first stages are environmentally sealed so that water cannot enter the inner mechanism.
Good luck in your trail,, and keep blowing bubbles.