Anyway, the idea is to have an area in a user's profile where they can create one or more "item(s)". That item could be a PC, a car, a mountain bike, whatever. Something with multiple components. Those components could be manually entered in by the user and/or selected from a list created by the forum admin.
The item would be viewable in their profile under their own unique tabs.
Example of what I made for vB: http://forum.corsair.com/forums/showthread.php?t=39826
Check out the dropdown above each post, as well as my profile there for the system specs tab.
Here's the idea covering base / future release ideas:
1. User Account area to add/edit/delete "items". Creation screen would ask for the name of the item, and would be associated with the user's profile ID. Unique numeric ID independent of user / item name. (e.g. AWESOME COMPUTER). Checkboxes to allow the user to dictate whether it should be shown in their profile and/or in their posts or not.
2. Item edit area: - List of blank one line fields and/or multiple selection fields. Name for each field customizable by forum admin (e.g. Motherboard, CPU, etc).
3. Tabs in the profile with Item specs.
The vB mods I made use custom profile fields, but ultimately are limited by that, because if you want to have a 2nd tab, you need to custom tweak the mods and install them again with a different name. Ultimately the idea was to have a couple of custom tables on the back end, but I never got around to it.