Which programs do you use after formatting a computer?

I just formatted my computer and looking for MUST HAVE programs to install
I currently have
– AVG antivirus
– gom player for multimedia
-Jet audio, itunes for music playing,
– google chrome as main browser
– ccleaner and auslogics for cleaning registry and unnecessary files
Is there anything else I should install or do you guys have a software you would like to recommend??

AND I have toshiba satellite M300 series…after installing Windows 7 my function keys doesn’t work the way it use to be…(when I was using vista…some kind of animated?? function key option would show up when I click them) now nothing….anyone got a solution for this???

THANKS