It's nice to see some solutions coming together. We're not going to make a decision on what to do until at least next week, but our IT Manager has been leaning towards the MSI solution. I have to admit I'm not too familiar with installer programs.

I also found this solution on Experts Exchange, it might prove helpful to others:

1. Find the RSClientPrint.cab file on Reporting Services server

2. Extract all files into a directory on workstation and run regsvr32 on RSClientPrint.dll at command prompt

The problem with this method is that those clients that use it will not be updated in future Service Packs.