The Grado SR60 would seem almost to be the de facto choice at $69. I use them at home, too, they do the job (I'm not a 'critical' headphone listener, however)
My meager portable and laptop outputs drive them fine. The in-ear phones ave higher efficiency, typically, and
tend to work better with those measly outputs.
I own Westone UM-2's...similar to dual driver Shure, for less money. I like them a lot...travel with them all the time.
http://www.westone.com/music/I bought them on ebay from a seller in Cincinatti for a lot less than $299.00 (I think $225 or something a couple years back)
On the road they double as audio phones and also SKYPE phones (with a separate mic bought from Radio Shack). The Westone's and the little Radio Shack mic take up nearly no room or weight at all.
Enjoy.