You can download at address:
+ Security: http://www.tenebril.com/consumer/spyware/spycatcher-express.php
http://www.hijackfree.com/
http://www.download.com/VistaFirewallControl/3000-10435_4-10623889.html
http://tor.eff.org/
+ System Tools:
http://www.whatsrunning.net/whatsrunning/main.aspx
http://www.eusing.com/free_registry_cleaner/registry_cleaner.htm
http://www.undelete-plus.com/
http://www.iobit.com/AdvancedWindowsCarePersonal/index.html
http://www.gtopala.com/
+ Graphics and Multimedia:
http://www.photozig.com/
http://www.mediamonkey.com/
http://sketchup.google.com/
+ Other Softwares:
http://www.rssbandit.org/
http://www.imgburn.com/
http://azureus.sourceforge.net/