Greetings Everyone, being that I just bought my 13" MacBook Pro last weekend, I installed STEAM to see what games are available for Mac format. One is Portal and noticed that as recently as a 2010 Valve was giving it away for free. Does anyone have an extra code for a free copy of the original Portal I may have? I tried the First Slice demo and enjoyed myself. If anyone does have a copy to gift, I would truly appreciate it. Thank you.