Mac useful tools

Below are some tools that I found useful for my Macbook. 1. LockTight – provides the functionality of locking your MacBook with hotkey combination similar to CTRL+ALT+DEL in Windows http://www.gkoya.com/2006/11/23/locktight-for-mac-os-x-intel/ 2. Paintbrush – Lightweight paint tool http://paintbrush.sourceforge.net/downloads/ 3. Growl –