How to connect xbox360 with my tv and surround sound system?

I don't want to use any low quality options like RCA cables. I want to connect all three with my best option to get the best quality available. My tv has an audio (in), and 2 hdmi. The receiver for the surround sound has 1 hdmi and a digital audio (in). The xbox 360 is one of the newer ones so it has an hdmi as well. I can't figure out how to do this since the tv and receiver both have an audio (in) which is rather annoying. How can I hook up all three things without using traditional RCA cables (red,white,yellow) which don't produce top notch quality. Thanks in advance