If bought thru STEAM:
Portal is $20
HL2:Ep2 is $30
This includes them plus TF2 (not interested) and HL2 and HL2:Ep1 (already own).
Wonder if I can somehow sell my "old" HL2/Ep1 licenses? Doubt it.
I pulled the trigger. I've heard great things about Ep2 and Portal.
(Title above is the link)
