Being a geek, I play Xbox games a lot. Being a music lover, I often want to listen to my own music while playing. Being the right sort of geek, my music is all lovingly arranged in iTunes on my Mac.
Windows people have it easy with Xbox. They install the Windows Media Sharing service, make sure WMP knows about where their music's kept and it just becomes available to play on the Xbox. I had assumed that us Mac users were excluded from such fun, but then I came across Connect360.
Connect360 is a simple enough application to use. It installs into your system preferences and lets you share music from iTunes, photos from iPhoto and movies from disk. The configuration is simple - you can allow/disallow different Xboxes and it will sort out your Firewall settings for you on the fly. The first time I tried to play an AAC file the Xbox had to go to MS to get an updated codec, but aside from that no additional setup was needed on the Xbox - the mac appeared as just another source.