Which Spindle for OX?

Hi, can someone point me to a good spindle for my OX. I've heard most reference the Dewalt 611 while others reference "Chinese Spindles".

Is there a review available that compares each? Which spindle do you use and why? URL to where you got it would be nice too.

I'm building my first OX and at the moment I need controller board and spindle.

Thank You