Best formal training for PostgreSQL use?

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It appears that this message failed to post, so I am trying again.
I actually tried this twice with Deja, once more with a mailer program
that I have used for the first time which also doesn't seem to work,
and now this time.  If you see this message more than once, please
accept my apologies.

I need to create several web sites in which visitors can access and
input information to a database. The site will consist of free input
by the general public, but using a user name/password scenario, and
free/paid input by an industry group, depending on content.  The
database will hold the information, and will have to also track which
content is chargeable, and deny/allow access based on whether industry
users have paid for the particular input.

 I have been using Access 2000 just to get an idea for
layout/relationships, etc.  Other than that, I have no experience with
database use/design, or SQL. I will be using PostgreSQL, and have
purchased several books on SQL, PHP 4.0, and Unix/Linux.  I have also
sucked up every possible site that I can find that offers free online
info/training on open source databases, and SQL. I have installed
Mandrake 8.0, with PostgreSQL, and have RH 7.1 waiting in the wings.  I
would like to get some formal training on databases.  There are many
technical schools in my area.  What would you recommend?  Take a
technical course such as Oracle 8i, which I would be willing to take
all the way to the 5 certification test point, or just a SQL course,
which is much shorter, and much cheaper?  There really aren't any
other options, except MS SQL 2000.  Or am I making a mistake taking
something like Oracle, if using PostgreSQL?  Should I look for a cheap
copy of Oracle/Keystone Training on an auction site instead of the
classroom training? And will Oracle be the correct choice? The only
other CD/Video training offered is usually SQL or MS SQL 7/2000 by
these companies.  What's the best choice of the above scenarios to
get a good foundation in database design/administration for using PostgreSQL?
Not interested in getting a job in this field, already am self-employed.

Thanks for any assistance!

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