I only have Photoshop Elements and Premiere Elements and have found them both to immensely helpful. I also have MS Publisher that I use in conjunction with Photoshop. I think Dreamweaver will be be my next stop when I have the money.
I don't know that I have a need for the entire suite, but I know others on here use many of the adobe products...hopefully, they'll chime in here. Also, check out this
thread for some websites where you might be able to get an academic discount if you are in school or have a child in school.