Image tank/storage tank

What are the experiences with the so called image tanks/storage tanks here?
Since I got a some pictures from which the white balance was screwed up I became a RAW 'convert'.
Since hauling along a load of 1 GB SD cards isn't a economical solution I am considering a image tank which is basically a housing for a laptop HDD with a memory card reader and a battery.

The best option would be if Pentax could implement a lossless compression on the DS for the RAW pictures. When I convert them to DNG with the Adobe RAW converter I allmost get a 50% size reduction including a medium res JPEG preview embedded in the DNG file. But I assume that the processor inside the DS isn't powerfull enough for this.

You could always shoot JPEG....

We use an Epson P2000 which is effective and has a brilliant 3.8" screen. We have added a laptop to that, and I think the laptop might well be more useful overall. It wasn't that much more expensive either.

DNG is available for any manufacturer to use, it's a fully documented format. Leica and another manufacturer are offering it as the RAW format.

It's time the manufacturers got their heads out of their @sses and standardized on one format for RAW so our photos can be opened ten years from now.

Hear Hear! (or should it be "here, here"?)

Right first time. Hear, hear!

G