Getting exception information (SQLERRM, SQLSTATE, etc.)

Is there a way to get information on an exception inside an exception block?

I've looked on the net and saw some postings regarding a patch for 8.0 that
may or may not be integrated into the main release at this point.

I'm currently running 8.0.3, writing a function using the plpgsql language
and have tried several options, albeit unsuccessfully.

I want to enable something like the following:

BEGIN

[ STATEMENT THAT THROWS AN EXCEPTION]

EXCEPTION WHEN OTHERS THEN

RAISE NOTICE 'exception (code=%): %', SQLCODE, SQLERRM;

[ DO SOMETHING ELSE]

END;

Thanks,

Lance