Not to disrespect any of the previoid posts in any way at all, just another angle to look at the subject: $100 for a pair of serious monitors is not a lot of money. $100 for a pair of headphones will get you out of the average consumer grade stuff. I'm not saying that you can mix a hittecord using cans and I won't say it's imposdible to mix s hitrecord on entry level monitors.
Just a thought.

Mike
www.mikewever.nl