HP has finally released full Driver Packs for their hardware, see www.hp.com/go/sdm
These individual Make/Model Driver Packages can be downloaded and easily integrated into SCCM Driver Packages or MDT Driver Packages for hardware independent Operating System deployment
See Johan Arwidmark’s excellent blog (http://www.deploymentresearch.com/) for more details.
Dell have lead the way in this area, and offer XP/7 Driver Packages for all recent Make/Models and have made a great effort to support most legacy models, see http://en.community.dell.com/techcenter/enterprise-client/w/wiki/2065.dell-driver-cab-files-for-enterprise-client-os-deployment.aspx
