Re: baby purchases
I agree with extra large muslins and we liked our Ewan the Dream Sheep - I'm not sure it made a blind bit of difference to our son but I found listening to it relaxing when after night feeds.
I would also recommend the Baby Bjorn bouncer (but not the baby carrier - they are known dismissively as crotch danglers and there are far more comfortable ones available which support the baby's bottom better and make them feel lighter to carry). We borrowed one and I will be buying my own this time. They don't look anything special but they last forever.
I loved my Snuzpod and I would also recommend the Angelcare bath seat.
Get a decent infant carrier car seat from a reputable brand. I'm a big advocate of rear facing as long as possible - my son rear faces at age 4 in an Axkid Minikid. We'll use that until he's 25kg or the baby out grows the infant carrier. It's a lovely car seat and is suitable for birth but not recommended until they have outgrown their baby seat. We've got a Cybex baby carrier from when my son was a baby.
IKEA high chair, definitely. Cheap as chips and fully dishwashable. The blow up insert is good when baby is small. I also recommend IKEA junior chairs when they are older.
The best things I've bought more recently are a Lumie bedside light and a Groclock. They have changed my life but they are for toddlers or preschoolers, not babies.
I wouldn't stress about prams. They will all do the job fine and you'll be switching to a lightweight stroller before too long, anyway. I got really hung up on trying to find the best pram ever but any will do! I would say the only thing to think about is if you want one that converts into a double. The Uppababy Vista was really popular when my son was small amongst those who might need to accommodate two in the future.