Thanks to Kotakuite James for pointing the largely Mac loving editors of Kotaku in the direction of Connect360, a program that mashes-up iLife, Frontrow and your 360. As the site explains..

Connect360 automatically indexes your iTunes and iPhoto libraries and shares them to your Xbox 360. You can then use the Xbox 360 Dashboard to browse and play your media, organized in the exact same way that it is on your Mac.

No video support yet, which is a bit of a disappointment, as I have a couple of seasons of The Venture Bros I'd love to stream on over, not to mention some hot World of Whorecraft porncasts. Florian Eckhardt

Connect360 [Official Site]