I finally made it into the world of iPod this Christmas, and I'm loving it so far. I have my iTrip on order thru apple.com, so next week I'll be able to take it with me in the car. I've got my eye (no pun intended) on a sport pack type setup to take it with me on bike rides. But I'm curious about the various skins available. I've seen some that have bendable bottoms to allow for docking, while some are super thin so that u can still use the case that comes with it. Can I get some feedback on those of u who have them? Pros & cons? Thanks in advance.