I am looking into getting one of these but I can not seem to find to much on it. See my sig and let me know if you think that will fit in there. I had a Crumpler 7MDH and I may just get another one of those since it is a great bag.
Also post some pictures if you have any. I will be looking at the waxwear version. 
**Edit**
Size comparisons
D700 about the same size as the 5D mark2
Sigma 15-30mm about the size of the 24-70mm 2.8L
50mm is a Sigma same in all mounts
70-200mm same as Canon 70-200mm f/2.8L
SB-900 same size as the 580EXII


