I agree with the above recommendations if you are going to rent something you are considering buying. Once you have your own gear, you'll find yourself diving more often. Those that I got certified with, if they bought gear, they were more likely to continue diving. As I accumulated gear, I found myself diving more often as well. Don't waste too much time deciding which BCD and regs you want, but also don't rush it. I've replaced my mask, fins, console, and regs. I have the same BCD which is an Apeks back inflate. I also found that my LDS way over charged for mask and fins, even with the student "discount". Something like a Hog low profile mask for $29 is a great deal. Get some nice jet style fins and they'll last you forever. But you'll also find that your diving style will change from the way you were taught. I was taught using a console with compass, computer, spg. After buying one, I later decided that I hated the console and moved to a naked SPG and wrist compass and computer. I luckily was able to recoup my console expense by selling it to someone on the site.
For all the stuff I replaced, I still have them as spare parts. I had a problem with my first stage a couple of months ago, so I pulled out my old one and used it until I got my new one back from repair. I forgot my new mask on a boat once and used my original one until I was able to recover my new one. So it hasn't been all bad having the extra gear.
The thing is, I spent less for my newer gear than I did my original gear and I consider my newer gear to be of better quality. It also better fits my diving style.
Good luck and get wet!
For all the stuff I replaced, I still have them as spare parts. I had a problem with my first stage a couple of months ago, so I pulled out my old one and used it until I got my new one back from repair. I forgot my new mask on a boat once and used my original one until I was able to recover my new one. So it hasn't been all bad having the extra gear.
The thing is, I spent less for my newer gear than I did my original gear and I consider my newer gear to be of better quality. It also better fits my diving style.
Good luck and get wet!