This response is not directed at/towards anyone, but a way for me to try to better understand others' viewpoints, perhaps to clarify mine, and more importantly, to learn.
Do you ever bracket your shots? why/why not?
Do you nail DoF, Shutter, white balance and all other parameters each and every time you take a picture? If so, you're a better photographer than me. I can only strive to be that good, and that's why I'm here - to learn.
Is your camera converting RAW to JPG in a perfect manner? What's perfect?
Would you like to have a say in how that RAW gets converted to a JPG?
I'm certainly not advocating shooting only JPG, or only RAW - why not shoot both, since CF cards are so inexpensive (I shoot 30 MB/s Extreme III CF cards and they are ~$50/8GB) and hard disk space is dirt cheap.
Today's cameras are quite capable in producing JPG images, however, if you read up on your cameras firmware updates, you may find that the camera manufacturer has adjusted the RAW->JPG post-processing within your camera. Why would they do that (rhetorical question)?
If I take a money shot (composition, focus, DoF, etc...) today, and 6 months or 12 months from now, I find that the in-camera post-processing wasn't accurate and the mfr has adjusted the firmware to correct an aberration, should I correct my old file? Which file would be easier to correct - RAW or JPG? The answer of course, depends on the aberration.
While I am very happy with the way my camera processes RAW into JPGs, I'm not ready to throw out the RAW CCD/CMOS data in favor of the in-camera post-processing (lossy?) JPG results.
Do I post-process my RAW files? Not at this time.
Do I post-process my JPG files? Not at this time.
I am a fan of minimal post-processing, with a JPG, I've already got post-processing in-camera; with RAW, I have absolutely no post-processing.