I'm about to become a mam-of-two and my ideal gift would be a day with a personal shopper - I saw it once on [broken link removed].
Although the other ideas are great also, the cleaner, cooker dinners for freezing etc.....
Also, pleeease make sure there aren't too many visitors in the first few days/weeks, this would be a better gift (for me anyhow) then all the others put together.