PoSh Password generator

$newp = ''
$passlen = 7
1..$passlen | `
foreach `
    {
        switch (Get-Random -Minimum 0 -Maximum 3)
        {
            0 { $newp += [char](Get-Random -Minimum 0x30 -Maximum 0x39) }
            1 { $newp += [char](Get-Random -Minimum 0x41 -Maximum 0x5a) }
            2 { $newp += [char](Get-Random -Minimum 0x61 -Maximum 0x7a) }
        }
    }
" "; $newp; " "

#  Next approach maybe better, will try it sometime :-)
#  $rand = New-Object System.Random
#
#  $NewPassword += [char]$rand.next(65,90)
# [...]