One of the things that appeals to me, as a new player, about a Nurgle Daemon army is the fact that the choices are limited. I think that I stand the best chance of learning how to use the army with the minimum number of additional or special rules. 

This does mean there is a risk in spamming a particularly useful unit type but at the moment, I don't know what they are!

I have started toying with the planned flesh based paint scheme and have sourced some nice alternative models for the army to use with the GW and FW bits I have.....