Malteser,
If I was going out looking for a device to go everywhere with me, I'd stick with the Palm IIIx (that's the one with 4Mb memory); That looks after my diary, my phone nos, expenses and the occasional off-line e-mail; Also runs off two AAA batteries that last several weeks (and light enough to carry a spare set with me); Also, ultra-reliable synchronisation, dock and you synchronise, first time, every time.
HP Jornada 420/430 has a sexier (colour) display and somewhat more function, but it uses a rechargeable battery so I would have to lug the AC adapter around all the time.
If I was looking for occasional web browsing, online e-mail, and a bit of word processing and spreadsheeting,then I would look very hard at the HP Jornada 680: Does MS Word, Excel, Powerpoint, Access and Outlook; Useable (if small) keyboard; Screen is the right format for browsing standard web pages (if only VGA); Built in 56Kbs modem (so you don't need to buy that separately and it doesn't take up a PC Card slot), and comes complete with docking station. But like I say - not cheap - about $800 (and then you can spend another few hundred dollars on other nice-to-have's: extended life battery, additional memory cards, external keyboard etc etc. Certainly rates five stars on my gadget desirability scale!
Don't know about Psions - had one once - loved the keyboard but found the software sufficiently different to be irritating - so dumped it and went back to DOS based handhelds ...
Like I said before - handhelds can be very hazardous indeed to your back pocket
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Feline
(I Sit, I Watch, I Smile)