I did not receive a XP Home CD or driver cd either. I noticed some people have and some people haven't (not just XPS2s but some 9300 had the CDs too). I believe if you go to
START>PROGRAMS>DELL ACCESSORIES>DELL RESTORE CD (or something to that effect.) then you can burn ONE copy of the Operating System (but does not include drivers.)
Oh yeah, if you reformat and fresh install you won't have Dell Media Experience. Dell does not offer it as a download from their site.
But I hear you can call and ask for it. You can download the drivers from their site though.