Hi everyone, I'm really happy with my new MBP but I have a question about connecting external speakers to it. I'm planning on getting M-Audio's LX4 5.1 speakers, since they're perfect for my needs (work and movie watching). The problem is that they only have 1/4 jack inputs. So, is there any way to connect these to the MBP and still get 5.1 sound? What kind of cables/adapters do I need? Thanks.