using oids as primary keys and foreign keys

I've looked in the archives searching on oid and 'access' (microsoft)
to see how others have handled migration from data bases in ms-access
to postgresql. MS access has an auto-inc field that is used frequently
as a uniq id.  Seems the OID has the same function. Yet, I've seem
parts of messages that say not to use the OID in that manner, but
nothing seems 'definitive'.

Can I use an OID as a foreign key in another table?

If not, what is the prefered method for replicating the auto-inc field
that ms-access users are so fond of... a 'sequence'?


--
David Bear
phone:     480-965-8257
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College of Public Programs/ASU
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 "Beware the IP portfolio, everyone will be suspect of trespassing"