Hi S.,
Here are my thoughts on baby showers *in general*. What I have to say is NOT a personal attack on your post, but more of a response to others' posts.
We have really gotten away from the original concept of what a "baby shower" is. The focus was originally on the *mother*, and providing her with things, especially the big ticket items, that she would use for ALL her children, and likely wear out.
There is the argument out there that every child deserves something "new". I guess to that I say, if that is one's philosophy, than I hope they have the pocketbook to back it up. I get absolutely no gratification out of being the person who takes an item out of its original packaging. My own son--so far an only child--has very little "new" things. Many were hand-me downs, the rest were things we acquired from garage sales, eBay, and Craigslist. I don't understand what some people have against "used" items. I was grateful for ANYTHING people gave me. I believe it is the parents' responsibility to provide for the child they are bringing into the world.
I'm not a fan of baby showers in general, even for first kids, because of the "gimme's" they have turned into. Someone offered to throw me a baby shower, and I declined, because I already had everything I needed, and then some.
I have gone to one baby shower for a "subsequent" child. The mother was remarried and her other two children were 16 and 18.
In my family, every infant IS celebrated and presented with gifts--it's called their baptism.
Back to your specific issue... I would be inclined to skip such a shower. If I was close to someone who was having a second child, especially of a different gender, I would be asking you what you needed and getting you a gift anyway, with or without a shower.