Thanks for the comments ya'll! I have thought about going with a 20 inch wheel, but I really like big wheels. I want to go big, but I don't want the go TOO BIG. I would like to get a 22 inch wheel with some 37's (I guess that's possible right?).
No, I won't be taking the H2 off-road. I really get the urge to sometimes, but I'm on surface coal mines all day every day and, lets just say, I get more than my fair share of 4-wheeling there (we use 2500 Chevy's).
Wish I could say that I had an actual garage to store it in, but, I don't.
So I guess it'll have to be parked out in the weather for now.