Naznarreb writes "CERN announced today that the first attempt to circulate a beam through the Large Hadron Collider will be on September 10th, 2008. You can read the press release here. They also announced the event will be webcast live. According to the release, they're just planning to run a few tests laps, not smash any particles, so the world won't be ending quite yet."
And despite that September 10th date, according to the BBC, "On 9 August, protons will be piped through LHC magnets for the first time