Grado makes some really nice stuff. Their cheapest model (SR-60i) gets rave reviews as one of the audio world's very best values.

http://www.gradolabs.com/frameset_main.htm

I've used the same pair of Sony MDR-7506's on a professional, near daily basis for about seven years. They're very accurate, and more importantly, super solid. I mean, they're tools. And they work. About $100, and a really good value for money.

http://www.amazon.com/Sony-MDR7506-Professional-Diaphragm-He...