A while back I blogged about TreeSheets, which is a flexible free form data organizer. If you tried that but felt that you need something slightly different, then check out TreeProjects – a personal database software for home and business.
TreeProjects provides an unlimited, freeform, ordered hierarchical organization of your information items (in a tree), single-file compressed data storage, instant single-click item viewing and editing, multi-tab interface for concurrent editing of several items, powerful search capabilities, and many other features.