Find who is connected to a database

I'm trying to drop a database in a postgres 8.1.4 instance (x86 Solaris
10 OS), but someone is connected to
the database. What is the best way to find out exactly who is connected?

Thanks,
Naomi

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Naomi Walker Chief Information Officer
Mphasis Healthcare Solutions nwalker(at)mhs(dot)mphasis(dot)com
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