Welcome to ScubaBoard! :happywave
This is a great place to find all of the information you are asking for. However, here is what you ask for:
Reviews - Try our forums under
The Equipment of Scuba Diving for a good amount of discussion on gear.
You could also try
http://www.scubadiving.com/ for equipment reviews. Some think that the reviews there are biased, but you can decide that for yourself. I looked into your profile and don't really know what kind of diving you do. If you are a technical diver this probably won't be a very helpful site. If you are a recreational diver you may like it.
Online shops -
http://www.scubatoys.com/
They are authorized dealers of everything they sell and I understand that their customer service is excellent.
Other message boards - here are a few depending on your needs:
http://www.scubadivernet.com/
http://www.thedecostop.com/
http://www.thedecostop.com/
Don't forget to fill out your profile and dive info, so that we can add context to your future posts. Also, once we know where you are geographically, you may find that you'll have a whole bunch of new dive buddies to choose from locally.
Dive safe!
Christian
P.S. Due to the high volume of new posts in the Introductions and Greets forum, it's not always possible to keep up with all the new posts here. So, please help me out and send me a PM if you post anything you want me to read or repsond to in this forum.
almtree: :sunny