Powershell script for 2008R2 server to check services

I need a script to take server names from a text file and check them for a service that may not be running. Then email me a list of the server names that the service is not running on.

I had one working in 2003 server but it gives many errors I have not been able to solve in 2008r2.

Here is the mess I have been working with, I am very lost. Can someone get me starte on the right path?

$serviceName = "eT Service";

ForEach($Servername in Get-Content C:\MonitorFolder\eTServers.txt){
#$NameStat = @(Get-ChildItem $ServerName | ? {! $_.PsIsContainer})
$serviceStatus = (get-service "$serviceName" -computername $ServerName).Status;
#if ($serviceStatus -ne "Running") {
   # $ServerName | out-file C:\MonitorFolder\eTariffChecked.txt -append
      #$serviceStatus | out-file C:\MonitorFolder\eTariffChecked.txt -append
}#}

   $NameStat = @(Get-ChildItem $serviceStatus | ? {! $_.PsIsContainer})
    Send-MailMessage -From 'ServiceChecker@systrends.com' -To 'me@company.com' `
  -SmtpServer 'smtp.company.com' `
  -Subject 'Results of  Service Check' `
  -Body  @"
      Restart the  service on all the servers that show not running: `n`
             Please Check the service and restart if necessary.
     $(($NameStat | ConvertTo-HTML) -join "`n")
"@