Apple Certified Support Professional (ACSP) v10.5
Formerly named Apple Certified Help Desk Specialist (ACHDS), ACSP certification is new for Mac OS X v10.5 Leopard. ACSP verifies an understanding of Mac OS X core functionality and an ability to configure key services, perform basic troubleshooting, and assist end users with essential Mac OS X capabilities. This certification addresses the technical skills needed by a Mac OS X specialist who works as a support professional or otherwise assists Mac OS X users with technical issues.
The corresponding course is
Mac OS X Support Essentials 10.5.
Apple Certified Technical Coordinator (ACTC) v10.5
Apple Certified Technical Coordinator (ACTC) certification verifies a foundation in Mac OS X and Mac OS X Server core functionality and an ability to configure key services and perform basic troubleshooting of the essential Mac OS X and Mac OS X Server capabilities.

The corresponding courses are Mac OS X Support Essentials 10.5 and Mac OS X Server Essentials 10.5.
Apple Certified System Administrator (ACSA) v10.5
The ACSA 10.5 program has been revised to provide candidates greater flexibility and is now focused on individual job functions. Unlike the 10.4 track, ACSA 10.5 now has four required exams. On completion of these exams you will be granted the ACSA certificatrion.
Required Courses
Apple Certified Macintosh Technician
This certification are ideal for people interested in becoming Macintosh desktop and portable service technicians, help desk personnel, or Macintosh consultants who need in-depth understanding of how Apple systems operate.

The corresponding course is the Apple Certified Macintosh Technician.