Love my Grado SR225s but Grados are not for everyone and more difficult to find overseas (search for Alessandros). Also, their build quality has a cheapness to them until you get above the 225s. The sound of the 225s through my tube headphone amp is amazing, can't wait till I get the 325s.
If your using an amp you may want to check out AKG k701s. For non-amped check out Senn HD 500 and 600 series. It is all going to boil down to personal preference and funds. head-fi is a great place to start your search.
I'm just getting into the earbud thing but take a look at what Shure, Etymotic, Sennheiser, Ultimate ears, and Head-direct has to offer.