With the dive computers, is that overkill to have for checkout dives? Or is that something that you will typically rent when doing the checkout dives? Are they even necessary?
Also about wetsuits...
I've only ever snorkeled and done SCUBA in warm waters in the Caribbean and in the Keys and that is going to most likely keep being my plan. In the warm waters of Grand Cayman will a wetsuit make much of a difference? Like I have snorkeled for over an hour straight before without a wetsuit in the tropics and was fine. However what I'm not sure about is at depth, the temperature changing and it being colder down there. So is that something that I need to consider as well?
I have an odd build that is an athletic/body builder type build, where my chest/shoulders/arms is that of someone who wears XL in most tshirts, but my torso/waste is that of someone who would wear more of a medium sized shirt. And my thighs aren't huge but I buy jeans with a larger waste size so that my thighs can fit more comfortably. My waste is closer to 34 but I get 36 for the extra space. I'm assuming that due to my build I'd most likely want my own wetsuit as oppose to renting one where the place may not have one that fits me well.