DA would be cool even if he didn't like Highlander.
My tastes mirror yours. I love the first movie, but love the TV show just as much, maybe even more. I didn't watch much in the beginning, because it was pretty weak at first. Years later, I caught up and it's a great addition to the mythos. Lambert was great in the first movie, but Paul really made that character his own and turned Duncan into a much richer character than Conner got to be in the movies.
I'm looking forward to The Source. It could suck; 50% of the movies do. However, I'm optimistic that it'll be really good and we'll get a few more movies out of the franchise.
My Neca Medieval Connor/Kurgan 2-pack arrives tomorrow. I can't wait.