Thanks Robert. Here's the code that I posted in the second blog I did on that. I find it slightly more useful although SQL Browser has some funny impact on it every once in a while:

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") | out-null

[Microsoft.SqlServer.Management.Smo.SmoApplication]::EnumAvailableSqlServers() | Export-Csv C:\Temp\LookWhatElseIFound.csv