Let me put in a word for the 770/32. Contrary to some opinions expressed here, these cans do not require an amp or take a lot of current to drive. I wonder how many of these opinion leaders have actually tried these cans. In terms of sheer volume, I run mine at a decent volume out of a Gina 3G soundcard without amplification and the volume knob is around 7 o'clock (6 = zero). From my Marantz CD67SE (a good 'phone out), they use about 3 or 4 segments of volume (out of about 20).
Obviously, as people on these forums like to point out ad nauseum, all three cans will most likely sound better with a good amp. But that's so obvious it hardly needs to be said. The point is, for your needs, they would do wonderfully well. I can't compare them directly to the other cans, which I haven't heard, but I can recommend them heartily for electronic music. Great spatial positioning, and a real feeling of ambience and clubbiness. And after a couple of hundred hours on mine, I'm pleased to report the initial peakiness and bass-heaviness has calmed down, bringing the famous 'recessed mids' forward.