Express Action Sports

I want to get a new mega zoom camera
such as the Pentax X70 or Lumix FZ28k

Both cameras have 20x mega zoom lenses and claim to have fast shutter release times and advanced action and sports features. However, I read one review that said the pentax is too slow for shooting sports.

But the Lumix costs ($400) about $100 more than the pentax.

Any suggestions on which camera would be a good choice? Please recommend other brands if you have a mega zoom camera that you use for action and sports photography.

Thanks!!
More info!!

Please read the above. I do not want a camera body and a 20lb bag full of lenses. I’m looking for the best nonremovable lens mega zoom camera.

Also, I am not a brand whore. I don’t believe that Nikon is automatically the best brand for digital cameras.

Panasonic FZ28k is a better choice,it take excellent image quality normally price of FZ28 is lower than Pentax X70 but it will be discontinued and there will be new model Panasonic FZ35 out soon

I found not to good reviews about Pentax X70

another good model that I would suggest is Canon Powershot SX10IS 10MP with 20x Wide Angle Optical Image Stabilized Zoom.It take good picture whether the action is fast or slow, close up or far away
http://www.amazon.com/gp/product/B001G5ZTZO?ie=UTF8&tag=computer0bd-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B001G5ZTZO