OneNote + Outlook works okay for what you're asking, but I have a hard time sticking with it because the interface isn't well-refined.
I like OneNote a lot more than I like Outlook, but the integration is reasonably good. You can create tasks from OneNote that give you reminders in Outlook, which link back to the rich-text "source material."
They are good for a fair few things (I looked hard at things like OneNote and Evernote in the wiki role, but chose a wiki because of crosslinking), but the data is hard to extract from their formats.
You can cross-link in Evernote and OneNote. Also, Evernote has a great feature called Context which is activated if you pay for a subscription (worth it) that automatically shows you relevant notes based on your current note. Also, Evernote is a lot more portable than a Wiki so you can carry it around and search through all your notes (including inside PDFs and other documents, OCR and images).
I like OneNote a lot more than I like Outlook, but the integration is reasonably good. You can create tasks from OneNote that give you reminders in Outlook, which link back to the rich-text "source material."