From Sandwich:
Let's see... some of those Sony Clie Palm OS-based (yes, I know... you're dead set against, blah blah) devices have hi-res screens, memory stick slots (128mb, anyone?), and multimedia capabilities.
But I digress. The real question is: What do you need it for?
Sandwich!

Hi there. Missed you. To get the groovy multimedia, storage, hi-res screens etc in a Palm, they cost more and have less options than the PocketPC/WinCE devices of the same price.
What do I need it for? Second brain, organization, programming, writing, sketching, personal entertainment, and (most importantly) portable access to critical information when I can't be anywhere near a real computer. I spent Friday and Saturday tearing down an ISP and rebuilding it at a new location, singlehandedly. During the process, I had no network access, no dialup, nothing. I needed information that I could not get without resorting to a long distance phone. I often have ideas during my long drive home for work, that are gone before I get there. All the PDAs I'm looking at have a voice recorder. Besides anything else, they make just plain good toys. I can't bring myself to buy a Gameboy Advance, for example, becuase its JUST a toy. I got real work out of my old Philips Nino, and I'll get real work out of whatever I end up buying AND it will play games too.

From Setekh:
I personally don't really love PDAs either. It's the same deal with laptops, as well; pay more, get less.
You know, a friend of mine just bought an IBM laptop (she calls it the Black Slab of Power) specifically built for use with Alias|Wavefront's Maya. Her laptop cost about a grand more for the same desktop, but its far more portable. Hell, it outclasses all of my desktops at home and at work (though not my multiprocessor servers). Never underestimate the joy of being able to work on a 3d model under a tree in the park with a Wi-Fi connection back to HLP.

From Styxx:
Wasn't the Cassiopeia line discontinued?
Nope. The new E200 just came out. Its quite sexy, with a builtin USB host. I'm still trying to get the Casio techs to tell me if it can handle my MP3 Player (6gig hard drive). If so, that might close the deal. Being able to attach my PDA to my 6gig MP3 player (which acts as a hard drive when attached) would indeed rock.