Razz isn't spread much any more, but Triple Draw is catching on. If you want to play Razz, you should pick up Sklansky's book Sklansky on Poker which contains his book on Razz, which is the definitive work on the game. The best Triple Draw instruction in print is the section in Super System 2, but you might be better off with the 2+2 Forums.

Ray Zee's High Low Split Poker for Advanced Players (also a 2+2 book), is the book you need if you want to improve your Omaha/8. You'll improve your game quite a bit if you remember the admonition to "play for low". In these games, you want to "sweep", making a high and a low. Generally, you don't want to play a high-only hand unless it's extremely strong, since it the chances are great you are playing for only half the pot. I'm not a very good split poker player, but Omaha/8 is the next game on my list to study extensively.

Sklansky and others have said repeatedly that it is important to know all the games reasonably well, but you'll probably end up being an expert in just one or two. Because of the current state of poker, being a Holdem expert makes a lot of sense. If you know all the games, though, you can sit in a really soft Omaha/8 game and win for more than you would in a really tough Holdem game, even if you are an expert Holdem player and only a "good" Omaha/8 player. It is the *difference* in player skill that determines the profitability of a game.

Jim