I considered the AKG 701's but almost every review I read suggested the their sound greatly benefits from the use of a headphone amp, which I didn't want to get into. I settled on the Audio-Technica A900, which I'm happy with. I agree with the magicman's suggestion of considering the Denon D2000's as well.
Epic 80 / SVS PB13 Ultra
Denon 3805 / M2200 Outlaw Monos /
Sammy 55" LED