The new Ortofon 2M series carts (including the $99 Red) are known for strong, tight bass.
03-16-08: Marntz4me
...As for the Denon or the Benz Micro cartridges, I am limited to moving magnet types because of my Bellari preamp. I play rock on my turntable; so it would be nice to find a cartridge that empasizes more bass....
Also, before dismissing the Denon DL-110/160, remember that these are high output moving coil carts; they typically put out about 2.2mV. I plug mine directly into the MM input of my preamp with good results. Different preamps demand different outputs, however. I recommend you call a Bellari or Denon vendor to see if 30dB gain is sufficient for the DL-110/160 output, because otherwise, it's the perfect cartridge for what you're looking for. The bass clarity, extension, and linearity is well beyond what I expected for $180, and I enjoy listening to rock more than I did before. It's also superb on electro-acoustic folk/rock/country and jazz, whether acoustic or electric fusion.