Of course I want to be able to easily search and cross-reference and use all my research notes, like people say DevonThink does.

But I also want this:

To be able to scan a list of all the searches I did, sorted by catalogue I was searching. Then I want to be able to click on a particular search, and see a list of all the items that came up in the search, ranked by my own priority tags—including items I never bothered to look at. Then I want to click on some of those items to see the research notes about each item.