I bought the HDPro 7 awhile back and compared them to the Grado sr-60. The Grado's went back.
At 40$ I can't see anything coming even close to them. Despite their size they are very comfortable for sustained listening. I use them at work so sometimes I'll put them on without music since they do a good job of blocking out the background noise.
I've been considering getting a second pair for home. Don't want to wake my daughter with L4D