GPG Question

[Ed Lawson]

After the talk at this month's Centlug meeting on GPG, I have be trying 
to delve into how to use PGP.  I have three computers that are used for 
both personal and business use and on each I login as the same user for 
both purposes.  The question is how to use PGP in a way that provides a 
separation between personal and business use.  In other words, how do 
you set up PGP so that business mail is signed/encrypted so that 
business folks can verify/decrypt business mail, but they have no 
ability to verify/decrypt personal mail?  Is simply establishing two IDs 
for the public key the way to go?

TIA

Ed Lawson