What is the best camera for photography?!?

I am a photographer who is trying to get into event shooting. Weddings, parties, babies, kids, engagements, stuff like that. I would like to spend around $500. I know I want it to have a quick shutter speed, the camera I have now is sooo slow I always miss the shot :(. The big requirements for me is that it has... show more I am a photographer who is trying to get into event shooting. Weddings, parties, babies, kids, engagements, stuff like that. I would like to spend around $500. I know I want it to have a quick shutter speed, the camera I have now is sooo slow I always miss the shot :(. The big requirements for me is that it has high resolution, quality images and is quick, I don't want to start charging people and then give them crappy pictures, you know. I do like a manual zoom, but it is'nt a requirement. Also, I want digital. I have read reviews up the wazoo, but they can be extremely persuasive. I would just like to know what other photographers are using and love. I am soo afraid to spend that amount of money and end up hating the product. Any ideas? And please don't respond if you are just going to say the latest camera you heard about, please be an actual user and know something about camera's :)
Update: Also, is there a camera that just takes good quality images without having to buy various lenses and all that?
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