Partedmagic Live Disk (Ghost4Linux | partition tools)
http://sourceforge.net/projects/partedmagic/
nlite (Slipstreaming XP - Sp & Drivers)
http://www.nliteos.com/
Bartpe (windows live disk - lossa plugins)
http://www.nu2.nu/pebuilder
DriverPacks (add these to Bartpe|nlite - for no driver issues )
http://driverpacks.net/
Tutorial:
http://users.telenet.be/jtdoom/basetute/Eng_tut6b.htm