I am wanting to set up a 32gb usb drive for installing windows onto laptops and netbooks. What I would like is a bootable usb drive that lets me select which version of windows (XP, Vista, Win 7, 32 and 64 bit versions). I have iso's of all of these but I am not sure how to go about getting them on the drive and be bootable. Any ideas of what program will help me do this? Thanks for your help.