I dis-recommend intergrating drivers into the setup, as one of the prime benefits of a Clean install is that u get a chance to install LATEST drivers for ur hardware. Though I'd integrate mass storage drivers & LAN/wireless drivers so that ur ready to download new sound & VGA drivers. Besides all that, integrating BTS DriverPacks increases the install time from 8-10 mins on brand new PCs, & can add up to even 25 mins on an old celeron.
Being long associated with this unattended scene I still conclude drivers Automation is good, but not always..
Yes I do all ALWAYS intergrate some basic set of apps that make u ready to use PC using the SVCPACK.ini method.... namely
Acrobat 8
JAVAVM
Winrar
Real player Alternative
UltraISO
WMP10