Oppo HDMI
I am using the free HDMI cable that came with my Oppo DVD player and have not had any problems. I suspect it is similar quality to the inexpensive cables from monoprice. It is easy to make an HDMI cable for 10-15', however, if you want a 50' connection you need a very high quality cable.
Bluejeans cable also offers a few lines of low end and high end HDMI cables.