I had the original SR60, and its treble was very aggressive and hurt my ears. it is very open and leaks more sound than any other headphone I owned. Its thick cable made it very annoying for portable use. The SR60 was the most unnatural sounding headphone I owned with its aggressive treble. While the SR60i is said to be an improvement, most claim that the headphones aren't that different.
Imo you should listen to some JVC headphones. Try the new HA-S400. Aside from being very inexpensive(only around $30), it has received great reviews due to its great clarity from using carbon nanotube technology.