Gathering statistics on 8.1.7.4

I am starting to generate statistics on an 8.1.7.4 database and I have a
few questions.  

- Should I be using the dbms_stats package or the analyze command for
this version of Oracle?

- Looking at some of the threads in the archives, I note that people do
not generally recommend histograms.  If I use
dbms_stats.gather_schema_stats, how do I set the method_opt parameter so
that I do not generate histograms?

-  What is a good starting point for "estimate_percent"?  This is a 70gb
databsae used for a data warehouse application.  Data is added from the
production database every hour and we have a growth rate of about 20%
per year.

Thanks,
Peter Schauss
--
http://www.freelists.org/webpage/oracle-l

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