Relationships between contents (PODs?)

I’ve been tasked with setting up an internal office site that includes a reference guide. I would know how to do this in a relational database, but I’m hoping there’s a way to do it in WordPress without too much coding – I am not a programmer, although I have done some coding in the past in VB, C++, Fortran (oh, hush), etc. Most of the time I can find my way around code at least enough to get an idea of what’s going on. But PHP makes my eyes glaze over…

In a nutshell, I have four custom content types that I’ve created with PODs:
– Alerts
– E-Forms
– Templates
– Emails

Each of these content types has custom fields, which I think I have a handle on with PODs. They may also be related to each other, sometimes one-to-many, sometimes many-to-many:

– An alert may have more than one associated email
– An e-form will have one associated alert
– A template may be associated with multiple e-forms
– Emails may be associated with alert and e-form content types

Basically, what I am trying to do is get my page to display “related items”. For example, if I am viewing an alert, it would give me a list of links to the related entries in the other categories, if any. Kind of a “see also” setup, but automatically populated.

Is this even possible without reinventing the wheel? Is PODs a good tool to use, or is there something better out there?

Thanks in advance!