Portable GPU-cracker station
#1
Lightbulb 
Am in need of a portable cracking machine I can bring with me on certain Internet-access restrained missions.

Used to have a shuttle barebone a decade ago. Loved it. Was thinking of getting a similar station with at least 2xPCI-e.

Anyone ever tested similar hardware? What would your considerations be?
#2
BitFenix makes some nice small cases that can house midline GPU's.

Also, check out Tek Syndicate builds. They do micro gaming machines that should suit your needs.