Save some money and get the Sony MDR-V6 instead. It's the exact same thing as the 7506, but about $20 cheaper. I mostly listen to metal, rock, and some techno stuff.
I also make music on my computer and use my V6s as the main reference to see how it sounds. The problem is that I can hear plenty of bass with my headphones, but can barely hear it at all on my speakers (they're crap anyway).
I got mine at
DJ Mart for $80, but I think I found them for $70 somewhere else.