I've been processing archived X-Pro1 shots into B&W lately. Very refreshing actually and I've found many shots which are much better in monochrome than in color. Not an in-camera stuff of course but I've been adjusting them in LR using VSCO Film presets. My absolute favorite of those presets is Fuji Neopan 1600 at the moment. Great contrast and very nice grain.
Fuji X-Pro1 with Fujinon XF 35mm F1.4 R. JPEG converted into B&W in LR4.2 with VSCO Film preset Fuji Neopan 1600.