Out of those two, the NF7.
Personally I think you should look at a GigaByte board, a 7N400Pro2 would be a good choice.
<A HREF="http://www.newegg.com/app/viewProductDesc.asp?description=13-128-199&depa=0" target="_new">http://www.newegg.com/app/viewProductDesc.asp?description=13-128-199&depa=0</A>
The Abit board will score just slightly higher RAM scores than the GigaByte, but other than that, I prefer the GigaByte board (Owned Both).
My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>