Baby Product Overload!

I need help! Dave and I are trying to be smart as we buy all of the things that we are going to need for our baby, but wow, it is so overwhelming! There are so many products out there! I would love any advice you can give me on items that you loved and couldn't live without, and also items that I should avoid.

I especially need help with a stroller/car seat. There are so many options out there, ranging from $150 - $800; if you have one that you love, would you please let me know?

We are planning on registering soon, and any help you could give me on this would really be appreciated.