I'm not hoping for auto-HDR in an inexpensive camera, only auto-bracketing from -2 to +2 over 3 or 5 exposures.
My lowly Sony Cybershot W170 auto-brackets at -1, 0,+1. It even has an internal "Dynamic Range" process. Neither give me the latitude I want. But if I could bump up to -2,0,+2 with a different camera, then post-processing in Photomatrix should do the job.