I'll expand on the details here greater in the future currently I just want a few links to some good resources:
How to build a PE CD (32 and 64 bit) and how to build Dell drivers into the disc using Windows Automated Installation Kit (Dism): http://quenga.net/techblog/?p=127
Dell PE Drivers in DTK: http://en.community.dell.com/techcenter/systems-management/w/wiki/1772.dell-openmanage-deployment-toolkit.aspx
Dell also has drivers for their desktop/laptop discs to make PE CDs.
NOTE: In order to run ghost 11.5 you will need a 32-bit CD and run the 32-bit version of the PE.