The sending off wasn't harsh at all, He grabbed the blokes foot outside the area.... how the hell can a sending off be harsh in those circumstances.
Tris, I pretty much agree with you apart from your comments regarding Henry. I think in the last 10 minutes his legs were completely gone. He ran every inch of the pitch in the first hour and was just exhausted.
Arsenals goal did come from a dive by Eboue though so Arsenal fans can't moan about Barca diving if their own team are doing it.
I thought the ref was ok, the only one thing I would have said is that a couple of the challenges he let go may have warrented a yellow card, but then we'd all be sat here saying that he was card happy... can't win!!