I've been using Sony MDR-ED21's for the past year and thought these were great! Bass is excellent and they are very comfortable in the ear.
Since loads of people have talked about the Sennheiser cx300's, i have ordered myself a pair! Hope they are really as good as you guys say they are
I've been looking at the E2C's... and they are a bit pricey, and there have been a lot of great reviews for the Senn's.
There have a been a lot of people that reviewed the Sony MDR-EX71's being very fragile. The cable is exposed within a few months of use. So i'm trying Sennheiser for a change.