XP pro hardware drivers: library, cache for system when detecting new hardware

Where in the XP Pro OS (operating system) can place all the drivers needed when plug and play starts detecting new hardware? Background: I am currently overseas and the home computer my wife normally uses has crapped out on her. She sent me the HDD (hard disk drive) and I will install XP Pro along with all the applications, but this time will create an image onto the hard drive so she can recover if she needs to (Acronis Image). I was lucky enough to run a driver program that picked up all my drivers (Ghostdriver? program) before I left home and have the drivers the system will need once I send it back to my wife and she installs it. I believe that some of the hardware drivers are located in C:\Windows\System32\drivers but am not sure if this is the only place or if I can just "drop" my copy of drivers into this and have the system pick them up as it "discovers" it's new hardware. I do realize that she may have to reactivate the Microsoft XP Pro license and she can handle that (we also do have a legit copy of WXPPro). Any suggestions would be greatly appreciated. Thank you, TJ I am glad I asked, I did not think about the the possible driver conflicts. I will try both the CD and Driver Magician. Thanks!