Endpoint Protection

We are looking to start blocking personal MP3 players from being connected to our workstations.  Does anyone have or know of a good list of known MP3 player Hardware IDs?  Figured this would be a good place to share the knowledge, as I don't have access to every MP3 player out there...

Or better yet is there a decent way to log all hardware IDs? (we have SCCM, so that can be an option).

You can use this tool to view the IDS
DevViewer - a tool for finding hardware device ID for Device Blocking in SEP 11.x / 5.x
http://service1.symantec.com/SUPPORT/ent-security.nsf/ppfdocs/2007511906325898?Open&dtype=corp&src=&seg=&om=1&om_out=prod 

 Using DevViwer you can get the Hardware Id

Title: 'DevViewer - a tool for finding hardware device ID for Device Blocking in SEP 11.x / 5.x'
Document ID: 2007511906325898
> Web URL: http://service1.symantec.com/support/ent-security.nsf/docid/2007511906325898?Open&seg=ent

You are no help man...obviously I know about the Dev Viewer, I am asking if anyone who has already got a list compiled if they would share the knowledge as I know I don't have access to every kind of MP3 player out there...

 block all , allow few- is always better than ..allow all, block few.

Others reading the post may use devViewer to get these IDs and post it here :)  

@Vikram - Yeah thats my stance on alot of policies, but this one is very political.  I would rather block all then add exception when needed, however when dealing with 13000+ users its hard to get a good whitelist...not too mention the "political" backlash...