I also had the Monster N-Pulse and I have to tell you, they have been one of the best $100 I have spent in headphones purchases (they usually sell even cheaper on eBay... note that 'm talking about the N-Pulse and not the N-Tune ;-)). Monster seem to be doing excellent products lately. I actually bought the DNA Pro over-ears to try them out.
Just to confirm, these are the DNA headphones, not the N-Pulse, which are really good too!
What do you think of the DNA Pros? I'm curious.