There are a lot of in-ear headphones out there these days, from the ones at the checkout line at the grocery store, to the ones that came with your iPod, to ones you'll need to take out a second mortgage to get your ears on. And most of them will do a decent job of pumping sound into your ears. Shure's SE215 earphones sit at that magical $99 price point -- not for everyone, but highly tempting to those committed to splurging a bit to replace those awful 'buds that arrived with their PMP of choice. So, how do these guys stack up against the immediate competition? Read on to find out what we heard.