I have not heard the hdj 1000..   I decided to go with the M80's. I read that they are better to hip hop/electronic and hd25's are better for rock. Hopefully this is true!

Alright, so here is my first post. I researched for a while and narrowed my first circumaural headphones down to the ATH-M50 and the HFI-580. I purchased both as the price was very low for each (109 and 119 w/ free shipping). I think I will be keeping the M50's. They are so much more comfortable...