Going Mac Mini in Entertainment System

Going Mac Mini in Entertainment System. Primary catalyst? Netflix streaming. The library of movies and TV shows (more important to me) on demand is improving. I Secondary catalyst? New Mac Mini is quite the green machine. Apple's claim is only 13 watts per hour on idle and that the "Mac mini the most energy-efficient desktop computer in the world." For a solar home owning, Prius driving guy like me, that really matters. Had been waiting for blu-ray drive but that's not looking like it's coming any time soon and I got tired of waiting. Recos for external blu-ray for a Mac? Would have gone PS3 given it's Blu-Ray drive but it can't easily stream Netflix without an awkward Windows server attached. Using a USB audio dongle to get digital audio out.