From MP3 players to Xbox’s, Halo seems to be leaving its mark everywhere on all things Microsoft. A few days ago I wrote a post on the Halo-themed Microsoft Zunes to be sold to military personnel. Now, Halo 3 is going to leave its mark on the Xbox 360. In September, Microsoft’s special edition Halo 3-themed Xbox 360 will be on sale for $399.99. It’s going to be green-and-gold with a matching wireless controller, headset, a Play and Charge kit, a 20GB hard drive, and some other unnamed goodies. Since Halo was an extremely popular game, it’d be wise of you to expect that this baby won’t be around long.