Find a user in an array and output that line of the array

Hello

I have 2 arrays.

1 is Users (actually they are local admins on a server) aka $LocalAdmins
Jack
Joe
Jill

The other array contains 3 columns, one of which is usernames aka $NTResults
User              Last Write Time                          Last Access Time
James             1/1/2011 12:00:00am                  1/2/2011 12:01:00am
Joe                  2/3/2033 12:02am                           3/4/5030 9:01:am

I want take each user in the $LocalAdmins and search through the $NTResults array for that user. if i find that user, i need to retrieve that entire line, user, last write time, last access time. 

Ideas?

Thanks!

This is an example of the entire script. Will work on 2k8/7

$NTResults = @();
$ErrorActionPreference = "silentlycontinue"
$server = "LocalHost"

#------------------ Check for last logins ---------------#
$UserLookup = Get-ChildItem "\\$server\C$\users\*\ntuser.dat" -Force #| select @{e={(Split-path $_.Directory -Leaf)}},lastAccessTime,LastWriteTime | sort lastwritetime -Descending 

foreach ($User in $UserLookup)
{
$UserName = (split-path $User.Directory -leaf)

    #Populate Object
    $obj = @{
        User = $Username
        LastAccessTime = $User.LastAccessTime
        LastWriteTime = $User.LastWriteTime
        }
        $NTResults += New-Object psobject -Property $obj  
}
$NTResults | select user,LastWriteTime,LastAccessTime | sort LastWriteTime


#------------Lookup local admins---------------#  
$LocalAdmins = Gwmi win32_groupuser –computer $server
$LocalAdmins = $LocalAdmins |? {$_.groupcomponent –like '*"Administrators"'}  
$LocalAdmins = $LocalAdmins |% {  
$_.partcomponent –match “.+Domain\=(.+)\,Name\=(.+)$” > $nul  
$matches[1].trim('"') + “\” + $matches[2].trim('"')  }

#Trim DOMAIN\ from LocalUserAdmins
$LocalAdmins = $LocalAdmins -creplace '^[^\\]*\\', ''

#Arrys to populate and split users from groups
$LocalUsers = @()
$LocalGroups =@()

foreach ($LocalAdmin in $LocalAdmins)
    {
        if (dsquery user -samid $LocalAdmin)
        {$LocalUsers += $LocalAdmin}
        elseif (dsquery group -samid $LocalAdmin)
        {$LocalGroups += $LocalAdmin}
    }