I'm a pretty new digi scrapper (and even newer poster lol) but I purchased ACDSee on the recommendation of some other scrappers and it is awesome!
I organize a lot like Cindy because I'm not a kit scrapper. I like to be able to say, hey, I need a string of beads to layer with this ribbon and search my ACDSee setup for beads. When you do that you can R click the preview and click 'go to file' and it will take you to the kit it is originally from. That has helped me a ton when I've been searching for coordinating elements for pages.

I'm guessing it'll help me a lot when I start putting together credit lists when I finally start uploading to a gallery.
I'm loving this thread though to see how differently everyone organizes and what works for them.