Ehh...the Super.Fi 5EB would be the route I personally wouldn't take. Although it sounds alright, it is extremely bass-heavy and doesn't have much of a sound signature after that. Think...canalphone version of the K81DJ on steroids. At $130, I would've just went with one of the several single-driver options out there...you know, single drivers don't always sound worse than multiple drivers. The Shure E4C and Etymotic ER-4 are two highly respected IEM's in the headphone world and both run off one driver. Multiple driver canalphones like the E5C and Super.Fi 5EB and even the Westone UM2 are known for being pretty inbalanced towards bass. The only multiple driver canalphone that does the job right are the Shure E500 and the various Ultimate Ears, Westone, and Sensaphonics custom models.
But whatever. I hope you like them.