You know, I'm pretty fed up with the segment of fandom who, with the success of shows like BSG and movies like The Dark Knight, automatically believe that dark=good (I'd call these fans "darkies", but for obvious reason, I wont). Adding a darker tone doesn't automatically make it better. I think all this talk of "dark" is TPTB getting their marching orders from the higher ups to placate the people who were upset that BSG ended. If they want, they could take a page out of SG1's first three or four seasons. The tone was serious, but not "put-on-a-Swans-record-and-stick-your-head-in-an-oven-and-turn-on-the-gas" depressing like BSG was. Also, I think that with the past 8 years of events, coupled with shows like the Sopranos, The Wire, and the aformentioned BSG filling the airwaves, I think a lightening is long overdue. Don't betray your roots over a handful or noir-philes, Stargate.