I still haven\'t found a truly satisfactory answer to this question, and am now considering rolling my own. I have ModelMaker and GExperts, and neither seems to load the co
Have you tried Delphi's own class browser?
The browser gets loaded with shortcut CTRL-SHIFT-B. I believe you can access its options by right clicking in the browser. Here you have the option to show only the classes in your project or all known classes.
I haven't checked but I expect every descendant from TComponent, including installed components to be visible below the TComponent node. Use CTRL-F to search for a particular class.
Edit: according to this Delphi Wiki page, CTRL+SHIFT+B is only available in Delphi5. I don't have Delphi 2007 to check for this but if you can not find a class browser in your version, I'd suspect there isn't any.