Move files from doc lib to doc set with in the library

Powers hell script to Move files from doc lib to doc set with in the library

$siteURL="http://SP2010/sites/Source"
$docLib = "MyDocs"
$site=Get-SPSite $siteURL
$web=$site.RootWeb
$collFiles=$web.GetFolder($docLib).Files
$count=$collFiles.Count
while($count -ne 0)
{
$item = $collFiles[$count-1].Item
$DocSet = $item["Region"]
Write-Host "$DocSet is the doc set. $collFiles[$count-1].Name is name"
$collFiles[$count-1].MoveTo($siteURL + "/" + $docLib + "/" + $DocSet + "/" + $collFiles[$count-1].Name, $true)
$count--
}