Well, i'm no 'expert' but i do know a fair bit (general knowledge) so i hope 
this helps... If the HDD you are installing NT to is 16bit FAT, then the 
obvious advantage is the Win NT comes w/ 32bit fat, so formatting it will 
make disk access faster, should anyway.. Dis? None, far as i can see (other 
than leaving it 16bit)  .. But a 200mb hdd?? The windoze operating systems 
are fairly sizeable, i'd recommend a bigger one if you plan on doing anything 
important with NT...
Hope this helps, a bit? 
-Zanathos
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