Device driver backup?

Whats the best, ideally free software to backup and optionality restore drivers to Win XP (and again, ideally Win 7)? I need to do a laptop build in a few weeks and don't fancy trying to re-find all the drivers!

 

i use driver magician lite portable

 

Here's another to look at: http://www.innovative-sol.com/drivermax/

 

I seem to remember DriverrMax being a pain to use. I think you had to register it on every machine you install it on and that didn't always work well. Unless they've changed it now?

Just found DriverBackup 2 which looks quite nice although not tested it yet:
http://sourceforge.net/projects/drvback/files/