I have to agree with Ranger on the plot. I'm sure I have seen 'the building is the bomb' idea before somewhere, I worked it out even before Samantha did and I'm nowhere as intelligent as her.
And the clones who are all the same age and have the same personality as the original, how many more times will I have to watch this on a TV show?
And the Agent Barrett shippy moment - "are you single again?" "not quite!" - is that the best they can do?
I think they feel the need to interspace Ori threat episodes with something else. I would hope that it wasn't because they can't think of them, and more because they think we will bore of them, but really, if such a threat existed, would we worry about anything else?
A prominant building disappears, alien ships appear and disappear, men in plate mail with shooting sticks run about the financial districts, a man with no past takes over big corporations and appears in two places at once, and there is a humunguous explosion in space near a huge spaceship that has been in orbit on or off for two years.
There are people who actually believe our world is run by reptiles, but no one in 'Stargate' has come up with a conspiracy theory on this yet? I don't believe it for a minute!