We decided to go with the wonderful world of Allure to satisfy our flooring needs. This stuff is very strong and completely water proof. Has a 25 year guarantee and needs very minimal preparation before being laid down - just have a clean flat surface and you're in business.
After a quick Youtube lesson we were pros at this - anyone needs floors done?
I think it made the space look bigger. Now the walls can go up and the darkroom will begin to be light-tight. Plus we re-designed the darkroom a bit so now we'll have a dry counter and a wet counter as well - just like Dr. Ansel prescribed.