I've been using a pair Klipsch S4s for a while and they sound great. You can get the s4i, which is the s4 with some inline controls for apple stuff, for $34 on amazon instead of the normal ~60 that they go for nowadays.
http://www.amazon.com/Klipsch-S4i-Premium-Noise-Isolating-3-Button/dp/B00264GYMG/ref=pd_cp_e_1