Met, I really lke your first posting, it's a great abstract! Bryce is different from many 3D apps, or 2D apps for that matter, in that it internalizes everything. If you import a model, and save it in Bryce's library, it will always be there regardless of wether or not you delete the .obj or .3ds model that you downloaded. The best thing to do is make a folder, and place all of your downloads in that folder. Import as much as you want, we'll go into library management later, but keep the originals for credit references and also in case your Bryce libraries become corrupted. When you hit 680 MB of downloads or so, burn it all off on a disk, and then you're safe! It's all in the manual, on how to save a model or texture into the Libraries...