Do you have any idea on some most popular and best Professional Cameras?

I think that you should go for canon EOS Rebel T3i (with 18-55mm IS II lens). The good point about it is that the Canon EOS Rebel T3i just delivers the excellent video capabilities and the image and the video quality. The bad point about it is that If you will shoot both still and the video, the T3i's controls will be frustrating to operate, and it is not terribly fast for burst shooting sports, kids, or pets. The bottom line about it is that for the money, the Canon EOS Rebel T3i is one of the great choice for the dSLR videographers though the cheaper T2i which can still suffice if you do not need the articulated LCD--and it is a solid choice for the creative still shooters. But though it's image quality and general shooting performance are top notch, if you are upgrading to the capture sports, kids, or the pets, the T3i may even not be able to keep up.