Hi guys.

I'm a NLHE player, I play MTT Low/Medium stakes online and High stakes live in Brazil.
When I discover about PLO, I really liked but it seems to me that to get really good I would
have to invest more money, since the nice cash games are more expensive and in tournaments
is more easy to go broke.

My question is: You guys think is possible to learn PLO, without dominate the NLHE (in results and the game philosophy)
or NLHE is a kind of step for the PLO?

If yes, does anybody have any good PLO article, book or pdf ?

Regards!