beware of "essentials" lists. in reality, newborn babies, especially breastfed ones need very little. i believe that bumps to babes have an essentials list on their website. i've never had a look at it, but i've heard that their essentials are not exactly "essential" and that if most people bought everything on the list, they'd not have anything left in their bank account!
you will need:
nappies of some kind
some one pieces
some bedding for the baby, blankets, sheets or grobags
depending on when your baby is due, maybe some warmer clothes
the rest will depend on you. with my first, i bought a change table. with my second, i've thrown that out and will change her on the bed
i have a cot for the baby to sleep in. with my first i had a bassinet, then a cot.
i have bought a baby monitor this time round, didn't have one the first time. i bought i this time because with the baby in the cot, i'm afraid we won't hear her crying if we are in the garden. with my first sleeping in a bassinet, we could wheel him around to where ever we were.
we bought a pram that is suitable for new borns. with my first we also had a front sling to carry him, but i found that when i wore it, i felt like i was pregnant again and it caused back pain. so that's gone with the second one.
i bought a cheap brest pump for the first, but i'm buying a better quality one for my second and have thrown the first two that i bought out.
that's all i can think of right now...pregnancy brain is on the rampage today!
good luck and congratulations!