When looking at the carseats and stroller and pack and play- pay attention to the weight.
We had a chicco keyfit 30 system and a chicco pack n play and I really wished we had gotten less expensive graco items.
The carrier on the chicco is one of the heaviest - two or three pounds more doesnt seem like such a big difference, but when you are lugging the baby around in the thing, in Texas, in August, you may wish that it was lighter. Also, its so heavily padded that I couldnt really get my car cool enough to get the baby cool. I'm not sure if other carseats are better for hot weather, but it was always sad to pull my little newborn out of the carseat, and to have her onesie soaked through with sweat.
Also - both of my kids outgrew the height limit WAY before the weight limit.
We had the chicco pack n play, and it was so big and bulky and it didnt really have a good mobile. I would definitely skip the big pack n play and just get a light weight one with a mobile. We used a cheap graco one at my sisters house and it folds up and down so easily and just takes a second to assemble either way.
I loved my Tiny Love mobile for the crib.
Also - you DONT need to have a bumper for your crib. The baby can never really sleep in there with it - its supposed to be a suffocation hazard.
Ditto on the Ergo baby carrier - I have both that and the Baby Bjorn and the Ergo is DEFINTELY better. Its not so good with little babies, but from about 6 months on I really like it. I carry my 14 month old in it all the time, and even carried my son when he was over two.
My kids both hated our big full size swing but like the little fisher price portable swing. I think, for the savings in money and living space, I would register for a little portable swing.
Sure - register for a high chair and also eating supplies (bowls, bumpkins bibs, spoons, sippy cups, etc). Six months will be here before you know it.
Congratulations!