Got to answer my own question:
A quick qoogle search gave me a kludgy method, but one that works nonetheless. Essentially one converts the *.pst files to mbox files via Mozilla's Thunderbird email client. From there the mbox files are imported to Entourage and then to Mail. Yes, I know that Mail should be able to read in mbox files directly, but for some reason I cannot (and yes, I did check my permissions on the file). If anyone has a suggestion on this latter point, I'd appreciate it.
Anyway, the following link provides the details.
http://www.riches.com.au/articles/ex...-entourage.htm