I need advice on which headphones would be best for me. I listen to all types of music and want headphones with strong bass and good highs and mids. I was considering buying the Ultrasone HFI 580 because they seemed to fit my criteria. DJDeals has them on sale for $120 which is reasonable but I saw that they also have the Ultrasone HFI 700 for $150. I'm not sure if the 700s are much better for $30 more. I'm trying to spend under $200 and want to know which headphones are the better deal.