dougzuck.com

Download it here:  http://dougzuck.com/remoterebootx
Along with bug fixes and cosmetic changes, here are some of the features that have been added:

Automatically reboot if required after installing WSUS updates
Automatically force reboot if normal reboot fails
Automatically stop pinging after reboot
In addition to installing downloaded updates you can now specify to search for available updates, then download and install [...]