Update: picked a pair of Adidas MX680 ear buds at best buy. Made with Sennheiser technology, so that's a plus. First reaction is generally positive. Lots of sizing options to ensure a proper and comfortable fit. Sounds quality is quite good, and much better than OEM Apple earbuds.
Only annoyance is that it comes with a short cord and a second, longer extension. Great concept, except the shorter cord is just a bit too short unless you are under 5'8". I'm 6' tall and generally clip my nano to the waistband of my short and run the cord under my shirt and up. In this setup the cord is about 2" too short for a proper setup. Having to add the long extension then gives me s ton of extra cord that I need to tuck somewhere. That, or I need to experiment with alternate locations for my nano.