Well, you know me.  I always have to throw in some anti-iPod sentiment where I can.  I don't know why, but for whatever reason I just hate the things.  I mean in terms of usability, douchebag ownership associations aside.  I've never been a fan of touch interfaces, but what I really hate is those ring selector things, and a lot of other MP3 players like to do that now.  I thought the touch on the D2 would bug me a bit, but I've actually found it to be perfect.  It's got two programmable tactile buttons and a menu button on the top, so when it's on hold mode I can use those to pause, play, and move tracks (or do volume, depending on how it's programmed).  Not to try and sway you or anything. I'm just sayin'.
Anyway, I feel your pain.  It took me forever to settle on the one I did.  There are so many out there, but so many of them are so similar, and a lot of times they're similar in terms of the limitations, not the advantages.  What a pain.