Here's a 5 frame pano I took and put together this evenning.  I used NIK's new Silver Efex Pro 2 for the black and white conversion.  It's leaps and bounds more versatile than Silver Efex Pro and worth every penny ($99) for the upgrade.  If you have never heard of NIK check out thier site.  They have many great free videos on editing which are extremely helpful.  I have found NIK's plug-ins to be my go-to source for editing beyond what Lightroom or Aperture can accomplish.