Ellie - Go in. Nothing to lose, peace of mind to gain
CD and Katy - I packed mine today [smug emoticon]. Was beginning to think I'd never get round to it, and would be stuffing a few random sleepsuits and bras in a carrier bag with DP trying to stuff me into the car.
Second timers or more; I'm getting some tantrummy behaviour too, and also some sweet, sweet clinging, but my DS is very young, only just two, so the problems are likely to be a little different from those with older children.
One thing I would say, based on something one of our multi-mums suggested, is not actually making the baby your priority or indeed yours in any ownership sense, but belonging to the family. Apart from bfing, if you are going to, and of course safety, really the baby's needs are seldom going to have to come first. And even feeding can be delayed a little if necessary. Don't get me wrong, I'm TERRIFIED about how DS will cope and how I will handle two, but I really did like the advice I got and thought I'd pass it on.