Well I just realised that everyone's been talking about The Orange Box for ages and there isn't a thread for it.

So, The Orange Box is a small collection of Valve games and includes Half-life 2, Half-life 2 Episode 1, Half-life 2 Episode 2, Portal and Team Fortress 2, and is named "the package which could legitimately be called the deal of the century" by IGN.

Half-life 2 and episode 1 have already been released, and Team Fortress 2 is currently in beta so when it is released on the 10th October the only real additions will be episode 2 and portal.

The Orange box can be pre-purchased on Steam and all of the games preloaded so you can play them as soon as they come out, although that's tomorrow.

The Orange Box website: http://orange.half-life2.com/

You can search on Steam for trailers of all of these games.