My general consensus on headphones is that you should
rarely purchase from retail stores like
Titles or
Futureshop, instead i'd look at amazon.ca or dealx.com as they usually have great or better pricing than their big box store alternatives.
Also, headphones really are dependent on what kind of music you listen to; as some headphones are geared towards different kinds of genres.
Check out:
this guide it's actually really extensive and will save you money in the end.
Oh and for the love of God, don't buy Beats by Dre' they are above average headphones, but nowhere near the sound quality you should expect for their price.
EDIT**
If you are looking for cheap headphones/earbuds, i would suggest JVC Gummy's or Koss Portapro.