I'm tempted to say everyone should, as says The Raw Truth.

From my perspective, I'll start shooting RAW when I'll have bigger memory card ; my 512MB is simply not enough. I still have the option to do it on a case by case basis. But I'll shoot in mixed mode: RAW + JPEG best quality. Some benefit of shooting in JPEG (all but low size of the files) with full benefits of RAW shooting: you can still process the RAW file later, but you have a ready to use JPEG file. The only problem is that the memory capacity of your flash goes down dramatically. On my EOS 20D, I go from 110 frames to 38 frames (average) on a 512MB CompactFlash.

That said, I was already questionning myself if I should do that, this article just made me see the light.