Welcome - you're definitely not the first folks who have found that a transition from a swinging to a poly lifestyle is desirable for them.
Definitely take a look around and see what similarities you see in your situation. A lot of posts are tagged, and you can see those at the bottom of the threads - you can search using those tags. If you can't see something that you are looking for post away - folks will either give you some suggestions for stuff to read, or answer directly.
Hope your time here is productive.
Please check out The Birdcage - an open, friendly Polyamory forum for all parts of New York State
"Listen, or your tongue will make you deaf." - Native American Proverb