BioShock 2 for Mac out today!
"I haven't played BioShock, though." If that is anything close to what you were thinking, stop thinking and continue reading. BioShock is a great game series that deserves your playtime. BioShock 1 has been available on 360, PC, PS3, and Mac for a good while now, but BioShock 2 was only on 360, PC, and PS3. That changes today with the release of BioShock 2 to the Mac.
BioShock 2 on OSX features everything you'd expect it to, such as the full campaign and the multiplayer, only now it's been ported to play on that shiny Mac you just bought.