PokerStars has a Mac client - and they are the BEST Poker Room on the Planet!
That's how I feel about this room. They do NOT take American players for real money play - but that's a good thing. They DO take American players for "fun" play. So no matter where you live, you can go to Pokerstars, and play. Once you click the "download" button on their site, you will be taken to a download page where you will have the option of choosing a Mac Compatible version of their poker software.
They spread the following games:
Texas Hold'em
Omaha
7 Card Stud
Razz
Triple Stud
HORSE
Five Card Draw
Badugi
Deuce to Seven
Their tournament selection is unbeatable. They host:
Sunday Million
Sunday Warm-up
Sunday Second Chance
Sunday Storm
Sunday Kickoff
Sunday 500
World Championship of Online Poker
Spring Championship of Online Poker
World Blogger Championship of Online Poker
Regional Championships of Online Poker
World Cup of Poker
the Daily Bigs
Should you decide to deposit and play for real money, their Welcome Bonus is generous - 100% up to $600.
PokerStars is the biggest poker room online, and there is a reason for that. They take the time to do things right. It shows in the game selection and the tournaments. It shows in the software features, and the fact that they were one of the first rooms to disallow datamining of their tables.
And, the integrity of the room was really displayed on Black Friday. When other online poker rooms shut their doors (Full Tilt, Absolute, Ulitmate Bet), PokerStars kept operations going and refunded the accounts of all their U.S. Players.
So, if you are interested in playing online poker with your Mac computer, I recommend that you visit PokerStars.