Good points, SS! I erred by saying the FX were "perfect". Perfect is a strong word, but overall I was very happy with their results.
Doomsday has long been my favorite episode as well.
Yeah, when I saw it for the first time, I was jumping up and down in my seat half the time as they brought the episode to full life. Annoyed the hell out of my wife as I would rewind to watch some shots again. "Look at that! They f**king NAILED it!"
The nitpicks were found later anyway. Great stuff all around, though. Like I said, it's like the turnaround Tomorrow Is Yesterday got. For these episodes alone, I am glad they did the new effects.