My 2 psi:
Reasons to wait:
1. Take the time necessary to decide if you will dive enough to warrant the expense.
2. It's a good idea to try different types and brands of equipment, so you don't buy something that won't make you a happy diver.
3. Money. Better to use rental gear until you can afford what you really want, rather than make hasty buying decisions based on available funds.
4. Figure out what you actually need to dive safely, and comfortably. I haven't been diving very long, and I already have a collection of stuff that I wasn't happy with, and replaced or discarded. Luckily it's all small stuff (I love my bc and reg). One day I'll put the assorted stuff on Ebay.
5. If you're not sure what type of diving you will be doing (tropical, local cold water, quarry). For instance, a lot of people start out with jacket style bc's, and switch to back inflate or bp/w set ups. Some remain recreational divers, and others go tech (caves, wrecks, deep, doubles). I decided to start with a DiveRite TransPac/Wing set-up, so I can easily switch to a bp/w if I choose to down the road.
Reasons to buy your set-up now:
1. If you make a commitment to diving in the form of equipment purchases, the odds are better that you will continue to dive.
2. You'll get to know your equipment (especially your bc), and dive safer. You'll also be more comfortable if you dive in gear that you know (and that fits properly), and don't need to learn where everything is every time you dive. If you can find your accessories, buckles, weight releases, dump valve, octopus, etc easily, you can react to a "situation" without hesitation or confusion. I practice before a trip by putting on my gear, closing my eyes, and finding everything without looking. Something you will really appreciate on your first low-vis dive.
3. New toys are a good thing!!
4. You will know the history and the state of maintenance of the life support gear on which you will depend.
5. If you've already decided that diving is now part of your life, and you want to dive every chance you get. The fact that you found Scubaboard (welcome BTW) indicates more than a cursory interest.
Also, IMHO (others will definitely agree and disagree), the order of purchase if you can't take the whole plunge at one time would be:
1. Mask, fins, booties, folding snorkel, cutting tool, flashlight, slate
2. Wetsuit
3. Safety accessories (whistle, mirror, SMB, etc)
4. BC
5. Regulator
6. Computer
7. Underwater camera and other toys as you see fit
Please note: The opinions expressed above are by no means meant to influence the original poster, or other SB members. They are simply my opinions, based on my personal experiences. Please further note that I am a novice diver, and could possibly be off base on some of my ideas...........
or do I need to get out my asbestos suit?