One of my favorite sources for cables and miscellaneous audio products has been Monoprice (www.monoprice.com). I finally realized–today–that they are into all kinds of pro audio, including guitars and MIDI controllers. Most of my personal pro audio needs have been met through Carvin products, or by simply calling Full Compass Audio in Madison. And if I need local help (Minnesota), I go to Metro Sound and Lighting.
Carvin has traditionally been inexpensive but rugged. From my experience with other Monoprice products, I bet that Monoprice will often beat other vendors with their product–IF–it happens to be in stock.
I have used Monoprice HDMI cables, VGA cables, lightning cables, iPad cases, and more. Everything is inexpensive, but it all works. So it might be worth checking out Monoprice for other pro audio needs.