Excellent price at the moment for Half-Life 2, anyone whos got an average PC has no excuse not to download this gem of a game.
If your new to the Steam platform, it's just a small client file you download and will enable you to purchase all valve games, including HL2 at this great price.
If your in the UK it will convert it for you and since it's £1 = $2 at the moment this is even more of a bargain.
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