My suggestion is to first try out different bc’s and regs before laying down the cash or plastic. Many shops will allow you to try out gear before deciding what to buy. Find out as much as you can about what you want to buy before buying. Check out reviews in dive mags and talk to other divers. A word of advice about on-line buying. There are excellent online sites who are extremely reputable. The concern is when you need servicing. Warranty issues? How long will it take? Shipping costs? I ’ve purchased some of my gear online but only those items where service is not an issue, i.e. mask, fins, accessories, etc. My bc, regs, computer and wetsuit I got through my LDS. Just a thought....