Just bought a pair for £21. Here:
Soundmagic E30 Overhead 20Hz-22KHz Earphone (Black) EP0034B - $33.75 - Affordable Headphones
Soundmagic E30 Overhead 20Hz-22KHz Earphone (Black) EP0034B - $33.75 - Affordable Headphones
the E30's arrived last night. Very impressed with the sound. Better that the S4's I got at the same time. The over ear fit will take some getting used to though.