That list of birth videos sounds great! I had to watch a bunch to veto the ones to show my son. I found he wasn't bothered by the noise in the videos though yet he was by me. I used to read Hello Baby and add in the sound effects as the mama is pushing the baby out etc. That helped him get used to it.

I wasn't at all bothered by his presence in labour but I guess he's a pretty unique kid so maybe it was just his nature? He gave me a few cuddles in early labour in the morning while we were waiting for my H to come home. Then I didn't see him as I moved in the spare room to focus on labour and my H put him down for his nap. It was only when woke up about an hour before birth that he was really around for the birth I guess and even then I didn't see or hear him as he just peeked in the door and that was it.