I just got a 16 GB Sony NWZ-E465 and I'm enjoying it a lot so far (well, except that it crashes Winamp on my computer, but that's another story). But I'm klutzy and I'm worried I'll drop it. I've damaged and destroyed iPods in the past that way. How sturdy is this thing? I can't find a hard case anywhere online for it.

A silicon (rubber) case isn't going to do the trick, is it? Better than nothing? I hate those things but I guess I don't have a choice? Wrapping rubber bands around it wouldn't be any more ugly than those nasty rubber cases, and maybe even less ugly (except of course, that partly blocks the buttons and screen if done length-wise). I wish I could find a clear hard plastic case for it.
I presume the E436 hard cases will NOT work because the dimensions are different, yes? The E436 is significantly shorter than the E465, right?
Advice or suggestions?