Thanks SMJ....just the advice/experience I was hoping for! The CSF was on the short list, however I was a bit on the fence regarding the actual need. What appealed most was the dual core. I've been all thru death valley with never an issue so very much agree the extra cooling capacity is not required.
I'll shop around and get the best balance between delivery/cost/supplier then.
It's a bummer on the U1000 code thrown along with the yellow "4x4" idiot light. I read about U1000 and it's unlikely that was the problem. Looking around on codes for Nissan's I can't find one specific for the 4x4 light...so will have to go with ASSuming it over heated.