Ok, I just bought a dvi to hdmi cable for the video on my tv. Now I just need to worry about the audio part. Would this cable work? http://www.bestbuy.com/site/olspage.jsp?skuId=7220777&st=rca&lp=1&type=product&cp=1&id=1114639085343 I want to output my audio from my macbook pro to my surround sound system, which i think has rca ports. Thanks.