Antivirus/Spywares:
AVG Antivirus
SuperAntiSpyware
http://www.malwarebytes.org/mbam.php
Firewall: Zone Alarm
HijackThis 
Spy Bot
Startup List (list of all task in task manager and whether they are rogue): http://www.sysinfo.org/startuplist.php
Startup list of task on local system: google for "StartupList" and "merijn"


Data recovery, partition managers, undelete partition:
http://www.thefreecountry.com/utilities/partitioneditors.shtml
undelete/view partitions: http://www.cgsecurity.org/wiki/TestDisk_Download
Partition Table Doctor: ptdd.com (Naresh)
HDClone (Naresh)
EASEUS partition manager (Giveaway)
Easy Recovery Pro (

Install software:
Firefox
Acrobat
Winrar
Google Talk
MS Office
CD Writer (Giveaway-StarBurn, )