These are recommended in "The Well-Trained Mind" and are decent:

Blackline Maps of World History by Terri Johnson: There are 4 books (that span time from 5000 B.C. to present day) and a CD-ROM. They are slightly more historical than geographical but work nicely for integrated lessons. They include maps and lesson plans.

Check out www.knowledgequestmaps.com for a lot of different resources and curricula (They sell the Blackline series too).

Mom to DYS-DS6 & DS3