Okay, seems I'm not done bombarding you all with issues! 
I've just re-exported (after waiting for an hour) my CapitalColPegasus.mesh.
During the load screen, I've always gotten this error but never got any problems before now... Things more or less worked perfectly fine after I simply skipped it enough times to nearly induce a seizure...
Assert @ c:\gs\main\CodeSource\Engine/Render/Mesh/Mesh.cpp(242)
m_Orientation.IsLeftHandAndNormalized()
But now on top of that error, every time I complete constructing the Pegasus, the second it hits the 100% complete mark, the game minidumps without any other error... what's goin' on, barbecue?
EDIT:
THIS time, I've received the following (even though I've not changed a thing!):
Assert @ c:\gs\main\CodeSource\Engine/DataStructures/FixedVector.h(155)
m_CurrentSize < MAX_SIZE
Damn the Pegasus... always giving me a hard time...