I also have a sump that runs a lot, and I too was thinking of remodeling the basement...my big thing was what to put on the floor. And I think I'm going to go with the 12"x12" tile. Heres the reason...first the floor cement so I can put the tile right on the floor, and I think that the rest can withstand a flood...except the grout. But I would do that a dark color and need to be I would go over it. Just a thought. I aslo see people that use brick walls that are about 12" high and then they start building above that...it looks nice and if it dose flood it wont hurt the bricks.