[Rd] R, fptex, MikTex

[Gabor Grothendieck]

According to the following Windows package building info:

   http://www.murdoch-sutherland.com/Rtools/

fptex is easier to install with the R package building tools than
MikTex.  I have been using MikTex but was thinking of switching
over to fptex to simplify my setup.  

My concern is that I have other latex files not related to R 
that use MikTex.  I am considering two situations:

1. Both. Has anyone installed both on their system?  Are 
there problems that I should know about if I do that?  
If it causes me problems will I be able to easily back out 
of them and get back to my current setup?

2. Convert to fptex. What about converting everything over 
from MikTex to fptex?  What sort of problems can I expect if
I switch?

Any advice on this?  Thanks.