A great app you need to give a try #MAC

Alfred: Alfred will help you with all the basic tasks you need (especially if you have the powerpack)

• start your apps
• play your favorite music
• find files you don't remember were even on your mac
• make you do searches on facebook, google, twitter, wikipedia and others
• calculator, dictionnary, etc (same as spotlight, but you don't actually need to start the applications)
• Do some system actions (sleep, shut off, lock, empty the trash)
• perform some shell scripts
• etc, etc

 http://www.alfredapp.com/