I personally feel very sad about the cancelling of Stargate Atlantis it was a great show, that could at least have lasted as long as Sg-1.
But in the end of the tunnel lies the new stargate Series "Stargate Univers", and of what i have read about that series, it look´s to be just as fun show as Atlantis, but a i guess we just haft to wait an see!
Agreed, Univers seems to be at least as good as Atlantis.