I think you've got it covered. I didn't use a change table, floor or bed is fine. We actually got a baby bath at ikea for $16 and Im still using it (she's 9 months) she just sits in it. I only use it when DH is here, he fills it and puts it on the bench, SO good for my back. Bending into bath is really tiring.
Apart from that, I got a hug a bub, awesome sling that I couldn't have lived without. And that's it!! (oh and I was given a rocker that turned out to be a godsend. Still use it)! xo