Or, you can do why my buddy and I are doing and taking the 777 out, the 350 back, both through HND! (Our return is through LAX, gotta get that In-N-Out!)
HND IS very convenient where you will be riding the monorail into the city with a bunch of other travelers with bags. The train out to NRT is interesting as are some of the rarely discussed sights in NRT such as the museum and Jet Lag Club, so perhaps you may want to do that. My trip there on the last US-Japan 747 flight was into NRT and back from HND. This was a great option to see both and to have the chance to fly on two different aircraft.