Feel free to add to my list, but I have come to realize that the three big ticket items we'll need for Bean are: a stroller, car seat and breast pump. These are the things that I probably won't get at a baby shower since they're on the pricey side and none of my friends crap cash, so I really should start researching and saving up for them.
When it comes to baby strollers, the five different types are: (1) lightweight strollers; (2) standard strollers; (3) jogging strollers; (4) travel systems and (5) strollers for more than one child. (source)