I suspect the name servers would be set automatically once the domain has been successfully transfered to DreamHost.
Although, the domain registration page in the panel does say this;
[color=#0000CC]"# You should do any nameserver changes (e.g. to ns1.dreamhost.com, etc) before transferring!"[/color]
Either way, the domain should appear under the Domains -> Registrations page of the panel once the transfer has completed.
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