Well KitKi83 like you I also use Teamspeak and Ventrillo for online gaming, and on my new MacPro, all they have for a mic connection is on the front panel, along with USB and Firewire connections. now on the back there is a line out connection, but in order to use the headset you will need a connector with a single male to duel female output for the line out wire on the headset and plug the mic wire into the front panel mic port. You would think for as expensive as these mac's are they would have at least a descent set of connections for sound.