bdyslm
Registered
Not sure if you've made your decisions yet. I was in much the same place as you, last December, except I bought my DC's before even doing my first dive. I opted for Shearwater because of the algorithms, customer service, and buy once cry once mentality. Although I did want AI and I love it! So I purchased a terix, the newer SW transmitter, and also got a perdix AI as a backup. I was able to get really good deals on all of them. No issues except the transmitter blew its overpressure valve about a week and a half into my diving. Shearwater and DiveTronix were awesome in replacing it.
As far as lights go - On day 3 of diving I did my first night dive. An ostracod night dive in Bonaire. My instructor had a tovatech galaxy 2 for her personal light during night dives and it was awesome. I bought one as soon as I got home. It's big but still easily fits in your hand, and expensive ($395 US on their website but you can find about $50 cheaper elsewhere. I was able to get it on sale for like 275) It's meant to be a camera light but she used it as a hand torch. Super bright flood light, super bright spotlight, red light, and UV light all wrapped into one. If you plan on doing night diving, I highly recommend spending the extra coin as you can throw on the UV and check out the cool effect whenever you want and then switch back without having to use a second light. I also carry a sealife sea dragon mini 900s as my primary during the day and backup at night. small and bright. Both are rechargeable batteries.
tovatec.com
www.sealife-cameras.com
As far as lights go - On day 3 of diving I did my first night dive. An ostracod night dive in Bonaire. My instructor had a tovatech galaxy 2 for her personal light during night dives and it was awesome. I bought one as soon as I got home. It's big but still easily fits in your hand, and expensive ($395 US on their website but you can find about $50 cheaper elsewhere. I was able to get it on sale for like 275) It's meant to be a camera light but she used it as a hand torch. Super bright flood light, super bright spotlight, red light, and UV light all wrapped into one. If you plan on doing night diving, I highly recommend spending the extra coin as you can throw on the UV and check out the cool effect whenever you want and then switch back without having to use a second light. I also carry a sealife sea dragon mini 900s as my primary during the day and backup at night. small and bright. Both are rechargeable batteries.

Galaxy II Video Dive Light
Product Description: The new Galaxy II video light will exceed all your expectations! The video dive light provides photographers and videographers a 3000 lumen, 115º beam angle light. The spot feature is perfect for recreational diving with 800 lumens, and 25º beam angle. Don’t disturb sea life...

Sea Dragon Mini 900S Power Kit – SeaLife Cameras
The Sea Dragon Mini 900 Power Kit pairs the Mini 900 Dive Light with both a 2600mAh rechargeable Lithium-ion 18650 battery and a compact USB battery charger, so you have everything you need to power the Sea Dragon 900 and light up your dive. Kit includes: Sea Dragon Mini 900S Dive Light...