The Audio Technica M50s are often touted as the best value for money headphones on the market, I disagree, they're not good as general purpose headphones and they're certainly not …
I own the original Audinst HUD-mx1 and I absolutely love it. I use it on my desktop PC along with a pair of Audioengine A2 speakers and some Audio Technica ATH-M50s headphones.