Which kind of Pu'erh tea to get?

Hi folks,

I heard about Pu'erh yesterday and I'm intrigued. After reading the
About.com article, which is really just one guy's opinions, I am
curious what you folks think is the best type of Pu'erh to get. My
local Asian supermarket sells a few kinds of Pu'erh.

For instance, is there a particular Chinese brand that is good or bad?
And which is best approach to fermentation? My goals are improved
health, since this tea has been shown to lower cholesterol, and
flavor.

Also, (since I am also posting this to soc.culture...) if the
container lacks any English text, what characters indicate the various
characteristics?

Thanks.