We have the DSC-W1, which appears to be the same as the W5, just last year's model.
It's a fantastic point & shoot camera and takes VGA video. We used it in August at Typhoon Lagoon and our shots came out great (we used our DSLR for the other parts of the trip). Nice and small, fits in your pocket. Huge 2.5" LCD display. I have a 512MB Memory Stick, and it fits about 190 pics at the full 5.1MP.
If you're a point & shoot only user, I recommend it. If you like to tinker around with manual settings at all, then it's a bit restrictive, although you could probably get away with the occasional long shutter speed shot (don't forget your tripod!).
Hope this helps!