Welcome, Brianna! I am Mommy to Bodhi, a 17 month old bronze Newfie (the gorgeous boy in my avatar!).
We have 5 cats in our home. Bodhi adores them. When I first brought him home they were his main playmates because he was only 12 pounds, about the same size as them. Now he is about 140 pounds, but still loves the cats....and amazingly, they seem to feel the same way about him. The cats have definitely set the parameters...i f Bodhi gets too rough, they will not hesitate to smack him with their claws out and make him yelp and run away. But that happens VERY rarely. For the most part they quite tolerant with him, and seem to understand that he is big and clumsy and they can get away from him (they dart left, he plows past them and hits a wall, lol). Occasionally, a cat will walk into the room with Newfie slobber all over it's back and looking a bit miffed, haha....but they continue to go back to play with him again!
That being said, it is important to keep an eye on any playing. These big dogs have only limited understanding of their size and strength. Bodhi is VERY gentle with his mouth, he never bites down at all....but what he thinks is a friendly toss of his paw could knock a cat across a room!
I've always had at least one big dog (though Bodhi is the biggest), and my experience has been that they are quite loving toward cats. I don't know if that's a normal trait, or if I've just been lucky!
And Holly is right....it is required that you post as many pictures of your new baby as possible! LOL!