Black 2003 H2's have been remarkably trouble free. But only Black.
As long as you are having your local dealer go over the truck, ask them to download all the updates into your on-board computer. If you have air suspension, have them chack that as well.
Also,A little bling on black looks really good, EVEN OFF-ROAD! So don't be apologetic.
The '03 models didn't come with nav. I have an aftermarket Magellan Roadmate 700 which I love. If you want the "factory" look, there are several threads here about retrofitting various devices, some of which incorporate DVD and Back-Up Cameras.
And if you want to do some fun wheeling with members in your neck of the woods, hook up with DRTYFUN in oregon or DennisAJC in B.C.
Mostly, welcome.