I own a pair of SE530. Basically, if you can afford them, just get them. Superb audio quality and outstanding sound isolation. Might be even an overkill if you normally listen to music in noisy environments or use lossy formats at low bit rates.
Just be aware that these headphones are on the balanced side, bass heads should move along.
I've owned a pair for over a year now. I use them everyday, and the I've adapted to the very good sound quality. Downside is, they make lower priced earphones sound like crap...