how generous of you. But when steam came to mac Portal was free for a month so I have that (on pc, didn't have a mac at the time and my current one is entry level because im poor so it's crap and doesn't do anything graphically intensive) 
and you know what?
I feel fantastic and I'm still alive.
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D