Why must it be 50-75?http://www.amazon.com/gp/product/B001FY7LBQWorks great.I actually did a review on it myself.
Depends on what you mean by, "good". Sure, for $50-$75 you can get a fully functional pair of cans, but it won't have amazing audio quality or reliability.
Buy some really good speakers instead
http://www.amazon.com/dp/B002P77432
The audio quality doesn't need to me amazing, I'm mostly looking at how the mic does.