[R-SIG-Mac] Local level packages not in path

[James]

Hi,

I'm completely new to R and it's usage on a Mac.  I'm having a bit of  
trouble installing packages through the Package Installer interface  
in R.app.  I'm trying to install the group of Rmetrics packages for  
option pricing.  When doing so, I'm given the choice of installing at  
the "System Level" or the "Local Level".  I chose to install at the  
local level.  The packages appear to have been correctly installed to  
~/Library/R/library/.  The problem appears to be that the location is  
not in my path.

 > .libPath()
[1] "/Library/Frameworks/R.framework/Versions/2.4/Resources/library"

So system level packages are available, but not local level  
packages.  I see under preferences for R.app, under Startup, the  
ability to set the "Default Library Paths".  There is a check box to  
"Add $HOME/R/Library".  Is this what I need to set to get my local  
level packages added to my path?  Additionally, it says that I have  
to restart R.app for this to take effect.  When I restart, the box is  
unchecked again.  Do I have to save my workspace to get this setting  
set?

And finally, is there just a text file or something that I could edit  
to make this addition?  It seems like those persons not using R.app,  
namely everyone on Linux, Windows, and some Mac users would need a  
way to set this.

Thank you for any help you can provide.

James