We often hear about childbirth from a new mom's perspective: The pain, the anticipation, the joy. (Did I mention the pain?) While there is of course no comparing the two, there's no doubt that the experience can be pretty mind-blowing for dad as well. Gone are the days when the expectant father would pace the hospital hallways just waiting to light up that celebratory cigar. The modern dad is right there in the delivery room, coaching, encouraging and - despite the plan to stay 'waist up' - even holding up a leg during the final agonizing push. Oh, and DJing,