I'm 6'2 with a 34" inseam. I have a 61cm Fantom Cross Outlaw that fits me well. I also ride a 61cm Specialized Tricross; I checked the geometry of the Fantom against that when I selected my frame size.

You'd probably be well served by the 58 based on your inseam and height; I'd think the 56 would be too small.

You could also find a Fuji dealer (my local Performance Bike carries them) and see how their cross bikes fit you; it's reportedly the same frame as on the Fantoms. You might even find one in stock that is as cost-effective as the BD bikes.