Question about deploying drivers to specific machines through SCCM

I'm looking to start doing driver updates through our SCCM 2012 R2 server.  I have deployed the Dell client on my computers, but now I need to know how I brake down the updates in the catalog for specific models.  I'd like to make a rules for our general workstations, cad stations, and laptops.  I'm guessing that I need to make a rule for it, and looking at it I think I need to do the system/WMI query but I'm not to familiar with how to write that query for a specific model.  And i"m not having a lot of luck finding any write ups.  Is there a better way to do this that I don't know about or a write up I haven't found?