Hi Rework, often when someone asks for something like this we discover that they sort of missed a huge chunk of functionality. You can more or less already do everything you just asked for. You can run a search, or just navigate your way to a particular category of toys. Then, all you have to do is click on "Add this toy to my collection", and it will be automatically added. If you're satisfied with the default settings, then you're done. Otherwise, just click on the horizontal grey bar that appears, and you can quickly edit the specifics of the entry. Some people get confused by the "ADD IT YOURSELF!" button in the top right, but that's for making permanent additions to the database proper, not your personal collection.
If you already know all this, but are really having trouble with the site's occasionally sluggish response times, rest assured that we have immediate plans to move the site to a faster server. In fact, we'll probably be working on that this weekend.
Let me know if I'm still missing something!