I think someone should make a pre-update of the current Half-Life 2 version, so if Valve decides to update it, we will be ready
Even a tiny engine modification would screw the whole project. And Im not saying that we will have to run the game on preupdate. We will run on Steam version as long as it doesnt get updated.
AFAIK, there is no OrangeBox HL2 in torrent websites, thats why I am suggesting this. GL!