I'll tell you what, though, Thelma Jane is worth everything I went through to get her. She is more fun to drive than any of the great number of other vehicles I have owned.
I assume you have checked out Thelma's web page, but if you haven't, then you might want to do so. You can read my "Ode to a Wrangler" poem and see some pics of Thelma.
Tonka, I think I would still prefer the 4.0 L. A V-6 is not nearly as well balanced as a straight six. If the 3.7 is anyting like the 4.3 GM engine, which is a chopped off 350, then it is going to be noisy and not exactly smooth running. Now the 4.3 is a good, reliable engine with some serious power, but I don't know anything about the 3.7. That 4.0 L has been around for ages, and it has proven itself many times over.
Whatever you decide, good luck. I know there's no way I could wait that long to get a Jeep (regarding the 2002 model).
I am not exactly blessed with patience.
Have you hugged your Jeep today?