Sorry for the nondescript title, it's a little hard to explain concisely.
We are setting up SharePoint 2010 to act as a simple document management system, to store documents such as forms, procedures, processes etc. They will be in standard Document Libraries, spread across various webs in the site collection.
Take the scenario of a form to request new mobile phone for an employee. That may reference some procedure document which describes how to determine what type of phone you need (loan, new phone, smart phone), and maybe some other forms to organise international roaming or additional equipment (extra batteries or some such thing).
The business wants to make this information available from SharePoint, so a user can easily see "here's my form for a new mobile phone, oh documents X, Y and Z are probably important for me to read too", and click link to go to those documents.
The referenced documents can exist in any library anywhere in the site collection, be of any content type, and can support zero, one or many referenced documents.
I have seen Document Sets, however they just seem to be for grouping files in the same library (almost like glorified folders).
I don't believe this is possible OOTB (short of simply having a multi-line text box in which to enter URLs, yuck), does anyone have any suggestions on how to solve this problem with as little custom development as possible?
Edit: a quick mock up of what I'm thinking might look like is here: http://i.stack.imgur.com/8xo1m.png. I can't embed in the post, because I don't have enough reputation :)