Heh, rogues are ALWAYS the last to get buffs
In answer to the question, traps and locks are oh, I'd rate layo at medium-medium high as far as PWs go when it comes to traps and locks, however they are sometimes even more prominent on Gmed quests.
As far as secret doors, there aren't that many, but I think thats because the way NWN handles the perception checks they add a lot of lag. I know of mmm, I think only two or three that are placed in the world, but of course you can encounter them on GMed quests.
-TV