I still use MS Office 2008. I've made about two attempts at using iWork and I just don't like it.
I'm trying to use Filemaker Pro though. I bought version 9 but qualify for a free upgrade to version 10. I really didn't like it at first, but I'm an old Informix/SQL and Oracle guy. I don't mind doing my own select statements and such, but those higher-octane database packages don't import/export/report as pretty as the carebear ones do. I don't want to "work" a computer anymore, I just want to use one. Maybe it's just because I'm getting old.