Powershell version of "which" command

As yet another note to myself (because I keep having to look this up), the equivalent of the UNIX which command in PowerShell is Get-Command.  That commandlet will let you pass in a name, with no extension, and return you the executable in your path that corresponds to that name.  This is really handy because it works with any executable, including native binaries and batch and PowerShell scripts.  So, for example:

PS pgeer> Get-Command rsync

CommandType     Name                 Version    Source
-----------     ----                 -------    ------
Application     rsync.cmd            0.0.0.0    C:\Users\pgeer\bin\rsync.cmd