Aloha, David.
Exactly when in Nov. you are coming to Kauai (if we haven't already missed you) will impact your diving options/experience. We've got some pretty big swells rolling in on the north side of the island so Tunnels is pretty much out, as is Niihau. If there is a chance for Niihau, call Bubbles Below as I think they are the only company going out there on a case-by-case basis at this point.
The south side has been experiencing some smaller swell action these past few days, which will last probably until Thursday-ish of this coming week and then all should be nice and quiet and flat for the weeks to follow. So if you are diving this week, plan on the south shore of Kauai but expect a bit lower viz and some movement under the water. Doesn't mean you can't have a great dive, just maybe not as "picture perfect". If you are diving the week before and the week of Thanksgiving, it should be back to beautiful! Of course, Mother Nature has the final say, so we never know for sure until the day before diving.
If you are up for an easy - but not boring - shore dive, stop by Aquatic Adventures and we'll get you set up. We're right in Poipu, underneath the Poipu Beach Broiler Restaurant (best fish & chips on the island, IMO). As Dave and Jim have previously reported, Koloa Landing is a fantastic, critter-intensive dive and we'd love an opportunity to show it off to you. :O)
If we don't see you, good luck with your diving!