Does anyone know much about those little digital 3/4-trackers. I'm talking about the Korg Pandora PXR4 and the Zoom PS-02.

I'm thinking about buying one or the other for creating song demos. The have set drum and bass rythyms that you can set, and then record like a couple of guitar tracks and vocal tracks over. Very cool idea, and the Zoom is the size of a cigarette packet. The Korg is a little bigger, but still fairly small.

Does anyone own anything like this? Or have any recommendations or other info?