Ian, pop Pd (Ware-Malde or Ziatype) can give you dead neutral or even cold toned prints - you can get warm toned and split toned prints too. See this print for instance, it's a pure Pd Ziatype print. It's a simple process (doesn't need any kind of developer, just a citric acid first bath + a good rinse - some papers need EDTA+sulfite clearing bath though...) and works very nice. It's good to have control over the hue. Just try it, maybe you'll like it a lot.

Regards,
Loris.