There are plenty of regs on the market that will do nicely.
Don't get hung up on the price or brands, most of mid range regs are just as good as the top of the line regs and there is little real difference in the quality or performance of any of the regs in the mid price range and above. Some of the major brands/models are way more expensive and all you are really getting for your extra money is name recognition and bragging rights. The major things you need to look for are features YOU want and service. Some regs like Scubapro and Aqualung will be easier to find service for than a lesser know brand but if you have a local shop that services a lesser known brand, they can be a much better value.
Instead of brands, think about how you will use the reg and what features are really useful. It would also be helpful if you learned a little about reg design. For example, for cold water diving, a sealed diaphragm first stage is a better choice than a piston, mechanically, they are better suited to handle cold water. For warm water the first stage design makes little difference in reg performance, contrary to what many would have you believe, the real determination of reg performance is in the second stage, the first stage has little effect on the overall performance of the reg. I would also suggest you avoid gimmick features. Not only do these cost extra, add things to break but add little real value to the reg......the DVT Is a prime example, put the dust cap on the reg like you are supposed to and there is no problem. Even if you do accidentally flood a reg with fresh water it's no big deal, that can be dealt with on site. Another gimmick is exotic materials, titanium for example. While it is more corrosion resistant I can see no reason to use it.....I have regs over 50 years old that are still in good shape, for the average diver I would think that is long enough.