I have a Dimage X that I bought about 2 months ago.
Very happy with it. Excellent to carry around. It takes decent pictures and is very easy to use.
I upgraded to a 64 MB SD-Card. It will hold around 122 Pics at max resulution/standard quality in JPEG format. Standard quality is enough for most applications. I tried the other settings but didn't really notice much of a difference.
The software included with the cam is crap. But you don't need it anyways... the cam installs as an extra drive on your computer via USB, and you can actually use it to transport data from one machine to another ;-)
Great viewing freeware can be found at
www.irfanview.com . It has batch functions (convert size / resulution for selected files), create webpage with thumbnails from directory, view directory in full screen etc.
The battery is very small and has limited capacity. When broken in (i.e. after a couple of charge cycles) it should take up to 100 pics on one charge, depending on how much flash you use and how long you have it running to look at the pics.
I use it as a snapshot camera and it is absolutely perfect for the purpose: small, lightweight, idiot-proof ;-)
HTH