Dipiscan - is a full featured network scanner that scans your local network by IP range and returns a list of all devices, along with their Response Time, IP address, MAC address, NetBios name, Adapter name, Operating System and other details.
The right-click menu for each machine provides access to additional options that let you execute WakeOnLAN actions (if supported), send messages, take remote control via Remote Desktop, and more.
Other features include an option to keep an eye on selected machines by adding them to a "Followed Machines" tab, as well as search by NetBios or DNS name and integrated trace route.
Dipiscan is highly customizable, you can choose from different retrieval methods, adjust timeout thresholds, set custom WakeOnLAN parameters, specify remote access credentials, add custom right-click commands and more.
Download: 
Dipiscan 2.7.2.zip - 1.4 MB