There were several things I could not live without but this one comes to mind first.
http://www.plantdelights.com/Aspidistra-elatior-Sekko-Kan-Perennial-White-Snowy-Crown-Cast-Iron-Plant/productinfo/7519/
It is a lot like the furcraea but it will be hardy here. Their aspidisteras are pricey but every one I have bought from them has done very well in the garden.
I plan on attending their propagation class in June, I can pick stuff up then. They are about 4 1/2 hours from here.
One of the aspidisteras I got from them even bloomed. I had no idea they had flowers.
New seller on ebay
Wow, that CI is gorgeous!! I would like to have that one also.
