Mattoco: To reaffirm with certainty, your old CD keys will work with the GOG install, simply replace the nwncdkey.ini file (or manually replace the keys if you do not have the file handy).
jlg6184: Thank you. I guess it isn't too big of a deal with GOG supplying keys and all, but I was just curious.
Not to try to figure out a decent way to explain to the wife why I would need to purchase a game I already purchased a year or so back, lol.
Very same here :D
After all the big leap in my case it's shortening install time from 1 day (NWN+XP1+XP2+Premium's+patches to 1.69+reboots) to less than half an hour... ;)
Same MP issue with standard GOG CD keys (Diamond edition) also.
I have already installed NWN Diamond a couple of times, trying to argue why it doesn't go MP: have I to reinstall it again, or modifying nwncdkey.ini now with my old keys (and registering them again in nwn.bioware.com?) will be enough to have it work?