Looking for lightweight, noice cancelling headphones with good sound in the $50-$100 range?

Skullcandy HESH. I bought a pair a month ago and LOVE them. I don't think there's any noise canceling built in, but it sure seems like it! $50-55 at Target

I personally am a huge fan of the Logitech G-35 7.1 surround sound headphones, They are not noise cancelling but drastically reduce outside noise so its almost like noise cancelling. On the other hand the swing down mic attached to it it is noise cancelling so if your gaming online or something all they hear is your voice. and the link on the bottom of this post takes you to the official info page about it the price listed there is about $130 but you can get it for around 70-80 bucks on Amazon, eBay, Newegg. I got mine off eBay for 90 bucks and have had no problems with it I am one satisfied customer and another thing on the plus side its a USB headset so you dont have to have a fancy sound card for them you dont even need a sound card and they are amazing for gaming or listening to music, they are insanely comfortable and you can change the head pad on top with extra ones they give you to custom fit your head.

http://www.logitech.com/en-us/webcam-communications/internet-headsets-phones/devices/5095

In one word?

BestBuy

But make sure you ask a representative before you purchase to get some sort of an opinion to make sure you get exactly what you want. Cause buying nice headphones is a (female dog).