bluesceada, the problem with processing with dcraw is that there's a bug in the SMaL raw decoder that occasionally results in green and purple streaks on images. I used to use that decoder in pv2fetch but abandoned it in favor of Sailpix's decoder when I couldn't fix the bug.
Take a look at IMG_0015 in my comparison shot directory for an example (
http://camerahacking.mine.nu/phils/demanufacturing/pv2/www/billw/pv2fetch/ ) but it's not limited to just this one pic. It seems to manifest itself in very bright areas of some pics.
Don't interpret any of this as slamming dcraw or DC personally; I use a lot of code from dcraw in pv2fetch. Just be aware of it, and if you see the artifacts show up you can hang onto the RAW and process it with some other method. Neither RawGUI, Sailpix's decoder, or recent pv2fetch releases have this bug, so you can take your pick.