What is your budget?
Are you OK with open cans (they leak sound)?
It doesn't matter what they are, they just shouldn't leak too much.
What equipment will be powering these cans? Will you be using an amp?
I will be using them on my laptop with intergrated Realtek HD audio soundcard. No amp.
What is the format of your music and other sounds you will putting into these cans?
Pretty much anything from 128 kbps to 320 kbps CBR MP3.
Describe the sound signature that you are seeking?
If you don't know your preferred sound signature (and even if you do), what genres of music do you plan to run through these cans?
I do like a fun sound signature with good punchy, tight deep bass, but I do like a balanced sound. Neutral can be too boring for me. I'm looking for good clarity, detail, punchy tight deep bass, instrument separation, good soundstage and imaging and clear detailed vocals in general. I only listen to rap/hiphop and occasionally some dubstep.
Do you plan to use them outside your home? If so, in what way & with what equipment?
I'll be using them at home in my bedroom, but occasionally I'll use them in my living room.