In Powershell, need to find way to grab all computer names from a given AD OU

I'm trying to do this efficiently, as I've already accomplished this in a not-so-elegant way.
Using the command "Get-QADComputer" from Quest AD Snapin and specifying the scope then doing a pipe and "select-object -property name", I end up with a nice little array full of computer names and related properties from AD.  When I attempt to use the name as a Get-WMIObject -computer <computer name>, it's not working so well.

It comes out like @{Name=<computername>} and I have to do an old-fashioned text parse to get it to work.  I don't think this is necessary in Powershell.  In VBScript it would be though.

Currently, I've tried various ways to do this.  I have a subroutine set up for a command like
getdrive $computer, but that's after I've parsed the names from their old form of @{Name=}.  I'm trying to find a one liner:

Get-QADComputer -scope <domain> | ?{getdrive $_}

My Function for the GetDrive is something along the lines of

Function Getdrive{
$ColDisks = Get-WMIObject W32Logicaldisk -computername $args
<more code>
}

So, I can't do a one liner for the Get-WMIObject because I have quite a bit of code needing to processed in my function... or can I?

Any help?
LVL 16
Dale HarrisProfessional Services EngineerAsked:
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BSonPoshConnect With a Mentor Commented:
Get-WMIObject takes an Array of Strings for ComputerName so you could just do this

$servers = Get-QADComputer | select dnsName
Get-WMIObject Win32_Logicaldisk -computername $servers

or

Get-QADComputer | ?{getdrive $_.dnsHostName}

Note: Your using where-object which expects getdrive to return $true or $false.
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Dale HarrisProfessional Services EngineerAuthor Commented:
BSonPosh,

Again, you came through with the answer.  I ended up using the second choice.  And I had to tweak my script and ended up using "$_.name" as a variable to show which computer had the hard drive space association.  But that was in my function only, and outside the function, $_.dnsHostname worked very well.  

Your valuable experience and dedication to helping others reflects great credit upon yourself, your company and Experts Exchange.

-Dale Harris
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Dale HarrisProfessional Services EngineerAuthor Commented:
Your valuable experience and dedication to helping others reflects great credit upon yourself, your company and Experts Exchange.
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