Developers, what headphones do you find best to wear while coding?

Context:

I like to listen to ambiant music while writing code, stuff like SomaFM or Jet City Lounge works well for me & helps maintain my focus for longer.

For the last year I have been using Sennheiser earbuds & found them to be excellent, however earbuds cannot deliver the range of sounds that headphones can or at least that is my understanding, also without intending to gross anyone out, they do contribute to some nasty earwax build-up if worn for extended periods.

I am not an audiophile nor do I have a huge budget for headphones (< $120). My criteria are 1. Obviously that they deliver decent sound, 2. that they are comfortable to wear for 6-8 hours at a time but don't slide off of my head and 3. they are well built.

After a few hours of research I have just ordered a pair of Sennheiser HD 429 Headphones from Amazon for $67.

Question(s):

What headphones have you tried, which have failed and which do you find work best for you?