I couldn't find a post specific to this question, and I searched 2 dozen so far and I'm sure it's listed somewhere....but no find so far. I have a MBP, and I'm in the market for some speakers. I'd like 5.1, and I'd like them to be mountable, but I don't want to have to take a line audio cable and splice it to multiple RCA plugs. I know the Line Out works with Optical Audio with an adapter, so what speakers are out there that are good, work with that technology, and are affordable? I like the Logitech G51 surround, and they are around 150 on newegg, so affordable, but do they work with this set up? What do others have? Price will be the ultimate trump card.