Microsoft and Bungie have made it official – their mega-hyped, eagerly anticipated system-defining shooter Halo 3 will hit retail stores on September 25. The announcement of the final ship date coincides nicely with the beginning of the public beta that begins today, so if you see some folks walking around with wide eyes and muttering “sensory overload…sensory overload”, chances are they’re fans of the series.

According to Peter Moore (the boss of the Xbox 360 group), “Sept. 25, we intend to deliver a finale that will go down in entertainment history and leave people around the world with an experience that will be shared and enjoyed for years to come.” Pretty big words.

So you’d think that the start of the public multiplayer beta and a final ship date would be all the Halo 3 news the world could stand, right? Not quite – Microsoft also announced that they’re releasing a Halo 3-themed Zune, featuring all sorts of Master Chief-inspired bells and whistles, such as videos and artwork. Perhaps someone may actually buy one of these iPod clones now?

It’s clear, Halo fans – Bungie is back and ready to dominate your life again. First, it’s for the next three weeks during the beta, followed by three months of anticipation for the final showdown to save humankind. Plunk down those pre-orders, tighten up your dual-wielding skills, and re-learn those grenade stick mechanics. The Chief is waiting.