Fred Miranda's forums. They are civil and there is a lot of information floating around.
To become a good photgrapher, you should spend a lot of time looking at other's work, and firguring out how they did it. This seems obvious, but I know many, many people who spend 20 times more time studying and reading about photography gear than they do looking at photography. I also know quite few with cameras that I could only dream of affording that never look at someone elses work. I understand they are achieving the satisfaction they are looking for by studying the technical side of photography (which is great fun, useful, and esoteric: don't get me wrong!), but personally, I believe improving your all around photography and artistic vision will be best suited by looking at what others have/are doing, and asking yourself, how did they do/see that?
If you ever need a book, check out "Understanding Exposure" by Bryan Peterson. It will get you up to speed quickly and can be had for cheap on Amazon.
The most important parts of a picture are the parts in front of the lens, and behind the eyepiece. The camera is not as important as one thinks.
There is a funny cartoon out there somewhere, but I don't know where...but it goes like this...
One guy shows another a picture and the viewer says "wow, nice picture, that sure is a nice camera." The photographer answers, "wow, nice complement, you sure have a nice mouth."