Camera Flashes Beginners What Is A Good Professional Digital Camera For Beginners?

What is a good professional digital camera for beginners? - camera flashes beginners

I have three 6.0-megapixel camera. I tried, one that works well preserved, but not really working for me. I love taking pictures at concerts and are (often too dark, the flash does not reach the stage), blurred or not expand very well. I think it is time for a good camera, just to show off my needs, but I have no idea what he receives. I need something that is good for beginners, but also be good if I is more advanced. Must be less than $ 500, preferably less than $ 400.
Suggestions from photographers with experience?
Thank you!