Around the holiday's there are lot's and lots of new computers. If your frugal like me however, you just spend time reformatting and cleaning up instead of buying a whole new computer. After setting up my fair share of new systems over the past few weeks/years, there are some default apps that I load on systems to prepare them for use.

However not all apps are suited for everyone, these just happen to be the ones I can personally vouch for.

Windows (XP/Vista/7)

Security Software:

• AVG Free (or if this is a VM Clamwin)
• Comodo Firewall (if you must have a fire wall)

Internet:

• Firefox
  • Adblock Plus
  • Adblock Filterset.G updater
  • IE Tab
  • Foxmarks
• Pidgin
  • OTR Messaging
• Thunderbird
• Deluge

Office:

• Go-OO
• PrimoPDF (Stay open source with PDFCreator)
• Foxit Reader

MultiMedia:

• VLC
• K-Light Codec Pack
• CDBurnerXP
• IMGBurn

Utilities:

• Peazip
• JKDefrag

Power Users:

• Nodepad++
• Putty
• WinSCP
• FileZilla
• Gimp
• UltraVNC
• VirtualBox

OS X

Internet:

• Firefox
  • Adblock Plus
  • Adblock Filterset.G update
  • Foxmarks
• Adium
• Thunderbird
• Transmission

Office:

• Go-OO

MultiMedia:

• VLC
• Perian
• Burn

Utilities:

• The Unarchiver

Power Users:

• CyberDuck
• VirtualBox

Linux (Most Flavors)

Security Software:

• ClamAV (if your interacting with Windows computers)
• UFW/GUFW(Ubuntu Only as of now)

Internet:

• Most distros come with Firefox
  • Adblock Plus
  • Adblock Filterset.G updater
  • Foxmarks
• Thunderbird
• Deluge

MultiMedia:

• VLC
• K3b
• Amarok
• MPlayer

Utilities:

• FileZilla
• gFTP

Power Users:

• All Linux Users are Power Users ;-)
• VirtualBox
• GParted
• Conky
• GKrellM

So be sure to check out some of these apps weather or not your setting up a new machine. Leave some of your favorites below!