The problem with Windows 7 at this current moment is this :
Windows XP -> you download drivers from the net and install them.
Windows Vista -> You download your drivers mostly from the net and install them, you can update them through windows update.
Windows 7 -> Which ever drivers are not installed with setup, you can run windows update and it detects all hardware and installs the drivers for you.
I have loaded windows 7 onto 9 different PC's so far and every single one worked this way. I would install windows, there would be a whole bunch of hardware not installed, i would search the net and not find any drivers, i would run windows update and boom, it picks up the hardware and installs the drivers....
Thus, the only option i see at this point in time to make driver packs for windows 7 is for users to use driver magician or something and post their ripped drivers and put those into driver packs.
it is still to early to get drivers from vendors for windows 7, with the exception of nvidia and ati ofcourse. once windows 7 is released, it is another ball game