where's the best way to reg dot CM domain?

[wxdqz]

dudes,
where's the best way to reg dot CM domain?
I'd like reg about 10 domains for my own. I saw a few site charge $ 799.00 for 2 years fee. like below:
<!-- m --><a class="postlink" href="http://www.rwgusa.com">http://www.rwgusa.com</a><!-- m -->
<!-- m --><a class="postlink" href="http://www.cmdomain.com/">http://www.cmdomain.com/</a><!-- m -->

What's the official site for dot CM domain name ?

thanks