HEather, I love how your little rituals will really pull the kids together in the transition period.
I haven't ever really done gifts or such, and I've only had one child who felt displaced; she is my sensitive child and was going from baby to middle. I just made sure to never put her off--if I was nrusing I pulled her up beside me and we would rock baby together. I tried really hard to help her feel loved and needed. Dh also stepped in and took her on little daddy dates, ect. It really helped.
I've always thought that sibling placement is interesting--my oldest daughter, the displaced baby above, is as I said sensitive and tends to carry the weight of the world on her shoulders. my second daughter, third child, thinks she owns the world and all are here to do her bidding. If she had been first, she would have completely dwarfed her older sister. As it is big sis can usually hold her own because of the age difference--it is beautiful to me how we all complete the familial puzzle. And each time we've added one, it has only made it more complete. I am so excited to see what personality we will be given this time!
My now youngest is a very balanced kiddo and is so into daddy; I think that will help alot in the days to come. Going from one to two and such seems a more difficult tranisition. However, my oldest didn't really struggle with it at all. I think personalities play a large part.
I made and froze cupcakes that we will have to celebrate baby's arrival. We are gf/cf and it was just easier to make them ahead. Although, DH is pretty expert in the baking dept...