Title says it all. Just need some help from you to suggest a good pair since I have really no idea what would best suit me.

Budget: $75-$150 (could go slightly higher)

Source: Mostly my laptop. Potentially an iPod or iPhone, but certainly no professional useage.

Requirements for Isolation: I'd prefer some decent isolation. I'll mostly be using them at home. If they can be plugged into an iPod/iPhone, I will occasionally use them on the go.

Preferred Type of Headphone: Around/over the ear.

Preferred Tonal Balance: Don't need a lot of bass I wouldn't think. Not sure of what I do need though. See my preferred music for help.

Past Headphones: Couldn't even tell you what I used as a kid. It's been a while. Sad to say I've had to use ipod headphones for a long time now, but finally can get something good.

Preferred Music: The genres I listen to mostly are prog rock, post rock, and ambient stuff. Examples of bands for these genres would include Coheed and Cambria/The Mars Volta, Explosions In The Sky/This Will Destroy You, and Tycho/Boards of Canada respectively. Also whatever Radiohead is considered. I'll also listen to classic rock and blues on occasion.