I'm very happy with a Sharp Zaurus 5600 I just bought via eBay for US$200. Really wanted a Zaurus 6000W with both WiFi & Bluetooth (and 480x640 resolution!) built in but they're just about impossible to find (and expensive). Both the 5x00 & 6000 Zauruses (Zauri?) have SD & CF card slots, a qwerty thumb keyboard & use Linux as their operating system. You can adapt/change the OS if you wish.
The 5600 I bought was in as-new condition and was in original packaging with all its bits and pieces plus a CF wifi card.
Built in software includes M$ Office compatible wordprocessing & spreadsheet programs + the usual PIM stuff. I use mine to stay in touch with work via the 'net, flight planning through the web service we use & to do W&B spreadsheets.
Being Linux based means it's suitable for hacking. There's quite a lot of software available plus modified OS setups that you can flash onto it to replace the original.
Last edited by Tinstaafl; 22nd September 2006 at 18:04.
Reason: blody tipos