SPSS is the standard, of course, but I never got into it. At the time I did my quantitative dissertation, SPSS was both expensive and clunky to use (it was DOS-based back then). Instead, I used a program called GB-Stat. (This was in the early 1990's and again in 2002 on both sides of my enrollment.) SPSS seems to be the surviving winner. Just for fun, on the qualitative side, I used nVIVO to analyze my data. I just don't know how people did--and still do--it by hand. All that cutting up of printed text and coding with colored markers...yeesh! For managing the bibliography, I used Perrla for both dissertations, but I understand Endnote is the way to go these days. No matter what, all of this stuff is a bit harder to use than it should be. Unlike mainstream software, which has to be easy to use or people won't buy it, these niche products put a lot more on the user.