There's a collection of rather entertaining Team Fortress 2 cosplay (standing for: costume + play) photos up on the official steampowered.com boards. The images show a bunch of folks dressed as each one of the character classes in Valve's teamplay shooter -- supposedly used for Halloween celebrations. The group picture (shown above) is inspired by an original Team Fortress 2 artwork.

Update: This weekend, a patch for the Xbox 360 version of Team Fortress 2 finally solved a massive lag issues that TF2 suffered from on the. Whole masses of gamers turned away from TF2 due to this problem. Now, the 360 version features a much better matchmaking system, and shows whether a server and/or player provides a good connection.