Don't forget the Impala and the G6, both big sellers. The new 900 large SUVs are selling quite well too, for this time of high fuel mileage.
Caddys are selling, and they are big profit vehicles.
I'll bet the new Aura will be a winner, and the new Saturn Outlook/GMC Acadia will fit in real well as large front wheel drive SUVs with some great interors (i.e., cross over vehicles).
Trust me, the H3 is not the end of the H's for GM
The H2 may have something changed on it in '08
I have seen some of the new vehicles that will be released in the next few years, and the GM design staff is making some very interesting and damn good looking vehicles.
Oh and Vietnam Vette, the General does not make H2s or Hummvees, and never made the H1. Those are all made by the other General (AM General). The H3 was and at this time is, the only Hummer made totally by GM, but you never know what wlll happen in the future.