Site Collection Administrators Report for All SharePoint 2007 Sites

[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")

#Get the Farm
$farm = [Microsoft.SharePoint.Administration.SPFarm]::Local

#Get All Web Applications
$farmWebServices = $farm.Services | where -FilterScript {$_.GetType() -eq [Microsoft.SharePoint.Administration.SPWebService]}
foreach ($farmWebService in $farmWebServices) {
 #Loop through Each web applicatoin
  foreach ($webApplication in $farmWebService.WebApplications) {
    #Loop through each site collection
    foreach ($site in $webApplication.Sites)
    {
       $Admins=""
       #Get all Site Collection Administrators
       foreach ($siteCollAdmin in $site.RootWeb.SiteAdministrators)
       {
           $Admins+= $siteCollAdmin.LoginName +";"
       }
        Write-Host "Site URL: " $site.RootWeb.Url " - Site Collection Admins: " $Admins "`n"
        $site.Dispose()
    }
  }
}