Hi Casey, I've already sent you a PM regarding internship info. Let me talk about gear here.
Most internship sets, including ours, is based on the same gear used for rental. Mermaid's and we both use the MK2/R190 regulator which is solid, if not spectacular. It is, however, unbalanced and you will find that an upgrade to a balanced regulator will provide easier breathing at depth, particularly as your tank goes below the 50% mark. Higher-end regulators also provide more user adjustments and need to be serviced less often. For mid-range upgrades we suggest the Scubapro MK-17/395 or the Aqua-Lung Titan ACD. Our most popular high end choices are the Scubapro MK25 / S600 and Aqua-Lung Legend ACD
In BCDs, we use primiarly the Scubapro T-One rental BCD. Mermaid's website shows they use something else, but that hasn't been updated in a while and they might have switched back to the Scubapro as well. Again, it's a basic BCD whose best features are its durability and two big Velcro-closed pockets. Upgrades will offer much more creature comforts, such as more padding, more steel D-rings and integrated weight systems and larger vented pockets. Our most popular upgrade is the Seaquest Pro QD. Great performance and durability for the price.
Upgrades to other parts of the package aren't as crucial. A mask is the most popular choice among the balance of the gear package, as mask fits are a personal thing. Torches are another popular item. We provide a small backup torch standard. Not sure a torch is included at all in ther Mermaid's one. I'd have to look again. 3w LED aluminum torches are proving to be the stnadard choice now among our interns. Best to simply decide on that kind of thing once you arrive.
We'd obviously like you to choose us, but no matter where you end up, do not feel pressured to buy upgrades in advance. We put all our upgrade options on our website, but only as a gude to what's available. We offer the same discounts in house, once you arrive, as we do if you order them in advance. It's best you see the stuff, try it on and we give you a few days to talk with other interns, try their gear, etc. so you make a decision you're comfortable with.
Also don't listen to sales pitches that the basic set is crap. We've heard some troubling stories out of other internship programs where new students arrive and the manager of the company has literally told them "well, yeah, that's the package, but I'd never use it. It's junk. You really need to buy THIS." That's BS. The entry-level Scubapro equipment is solid and dependable. It's one reason so many shops use it for rental.
Again, don't upgrade until you've had a chance to talk to other students and try their gear, if possible. If the internship program won't let you do that or won't supply rental gear free for a few days while you decide, then you're choosing the wrong program.
Being an internship provider, I realize my objectivity and motives are suspect here, but what I'm simply trying to do in this post is offer some tips based on years of experience seeing new students come through. Hope it helps.