My first and only PDA, a Palm IIIc, performed well over the past three years. However, it suffered a fall a few days back and I am looking for a replacement (Rhinoskin finally failed to protect). I've been out of the market for a few years and I could use some input on my options. I am looking for something that can function well as a pocket medical reference. The Palm IIIC did this well but I was constantly wanting more memory. Medical reference files can run large, and I was generally only able to keep two on board at at time, whereas I would ideally like to have 6-10. What I really want is to have a small medical library in my pocket. I am not opposed to bells and whistles, movies and audio and such, but I don't really need them. If I can save money by avoiding them, then so much the better.
As regards memory, I was a bit disappointed to see that Palm OS machines are generally not topping out above 32MB, and I had hoped for more of a tech leap in the past few years.
Lastly, if anyone has any case recs, I would like to hear them. The Rhinoskin Ti slider worked well against crush injuires, but the inevitable drop that came after years of drawing my Palm from my pocket was too much.
I upgraded from a Sony T665C to a Palm Tungsten T3, and it's great. 52MB of user RAM and an SD card slot provide lots of space for reference material. I keep a lot of medical and theology material on my T3. At 400 MHz with a 320x480 screen, there's no better Palm OS PDA on the market. I've had mine since the day they hit the street, and I love it.
If you're looking for a hard case, the PDAir Aluminum Case is the best out there. It fits the T3 perfectly, and it's the only one that allows pin resets and Hotsyncing while the T3 is in the case. My favorite leather case is the SurplusPDA Leather Zipper Case for similar reasons.
There is a case review on the site here that covers a number of other cases. I just submitted the review on the PDAir hard case today so it will probably be about a week before it comes up.