If you're like us, you've been indulging yourself in that Xbox Live Arcade a little more often than would be considered healthy, and you're loving every minute of it. Of course, if you're like us, you also inevitably get that sinking feeling that you just paid $400 for nothing more than an arcade emulator every time you glance at that gleaming white tower just off to the side of your 50" plasma display. Feel like it's time to take your retro flashback to the next level? Bust out that dremel, 'cause here comes the Atari 3600, the casemod that transforms your mild-mannered 360 into the box that Atari built. Old school, meet new school. New school, tear out old school's internal organs and replace them with your own. Game on.