I also have the P2000 and use it with a Canon 350D.
I notice that images shot using Adobe 1998 RGB, look a bit dull compared to images that were shot using sRGB. Is is especially visable when viewing strong colours like purple or red.
I see a simillar difference when viewing the images on the camera's LCD monitor.
I dont think these rather simple viewers, take account of the embedded colour space profile of the image.
Regards