I have two pairs of V-Moda Vibes/Vibe Duos (the duos for the iPhone), which have a good amount of bass, and crisp but not overbearing highs and mids…they’re really well constructed (gunmetal grey, alloy, very sturdy), and can be found at the Apple Store, and recently, at Costco! Worth the money ($69 for the Vibes), but if you want to go a step up, there are several competing choices out there for DJs and audiophiles who are into urban/hip-hop styles;
You may want to look into Jays q-Jayz , and Ultimate Ears Super.fi 5 EBs as good alternatives to the Etymotics and Shures…
Lastly a really good site for reviews: Head-Fi.org. Some crazy stories in there where audiophiles spend a sh&*load of cash on portable systems…good entertainment for audio junkies like myself…