The idea I have in mind is to try to allow invisibility to make more of an impact in some situations if used by the player. I imagine most players will prefer the direct approach and confrontation to problems in a game, but there may be a few who like the idea of playing more stealthily in some situations if possible. That's the idea anyway, and to this end I have set some "safety-nets" in place. These safety-nets have primarily been set in conversations, where a PC is protected from automatically becoming visible when given the choice to talk to an NPC. I have had to make some amendments to this code, such as allowing a PC to be able to talk to another player or inanimate object, but overall, the tests appear to be quite playable to date.
GetNearestCreature(NOT_MY_PC)
On a side note, I discovered that using the GetNearestCreature with the parameter to not return a PC (NOT_PC), will still return a companion. (i.e. A PC not currently controlled by the player.) I thought this was a little misleading, so mention it now. I had to make my own function in the end to ensure the nearest creature was an NPC rather than a companion. I then checked over all my other scripts that had made the same assumption and corrected those.
Playing Poll Results
The latest poll ended last week and here are the results from 25 voters:

I am also pleased to see that 16% of players will be trying an "evil" approach to the game. It will be interesting to see if any others change their style during play - simply because the "evil" path is easier to play than the "good" path. Also, if their are players who try both "good" and "evil", I will be interested to see what options they take in each case.
Very encouraging is to see players who will play the game more than once - assuming they are pleased with the module in the first place. In these cases, I will be interested to hear if their different experiences were due to playing different alignments or during SP and MP gaming.
In all, the results were very interesting to me and I look forward to getting this beast out (at least this first part) as soon as I can to start receiving some feedback.