I just read your first post so maybe I'm listing things other people have mentioned-

Thermometer shaped like a dummy

Breastpump (comes in so handy I didn't have one at first, mine is a tommiee tippee manual and it is good)

Bottles even if you intend to breastfeed. 3 or 4 should be good. Again, I used Tommee Tippee Back to Basics and my baby has had no problem switching from breast to bottle and back.

Grobags are good after they are a few months old. So good. Buy them online from Britain, that's the cheapest new I've found. My babe didn't like hers until about 3 months but since then its been indispensable. The 2.5 weight is good for weather right now (I live in Brissie, mind) and the lighter ones are good for summertime.

ETA- Blueiris, if you're buying a change table from Ikea, their Leksvik is a wonderful brand. We liked our change table so much we went back and bought a chest of drawers and bedside table in the same line. I'm trying to convince DH to get the bed, too. Beautiful timber, easy to work with, very attractive.