Thank you all for your recommendations. I have been using a Voodoo Reference coaxial cable and have been reading a lot about the enhanced sound capable using an HDMI cable. Last night I connected an off-the-shelf HDMI I had laying around and did notice a difference. I didn't do a back to back but I think I'm going to at least try a better quality HDMI cable and see if it really makes a difference over my coax cable.
I have considered the AQ Cinnamon, Chord, and Kimber all around the same price point, but might look into DH Labs as well.
Thanks again, everybody.