My problem with many mods that add NPCs and houses etc is that even though they may fit in perfectly and all, I still know itīs a mod and I canīt stop noticing it. The only way for me around that is to add it all before I even start the game!
Actually I kinda did that with Morrowind. Though I didnīt add any NPCs or houses, but I did add graphic enhancers and I donīt notice them since I havenīt played without them.
*coughcough* - Sorry. Must have cought the Reneeofftopic bug...