SISU Works is a member of the Apple Consultants Network...
SISU Works has attained the following Apple Certifications for Panther (Mac OS X 10.3)...
ACHDS
ACTC
ACSA
SISU Works has attained the following Apple Certifications for Tiger (Mac OS X 10.4)...
ACHDS
ACTC
ACSA
XSan
SISU Works has attained the following Apple Certifications for Leopard (Mac OS X 10.5)...
ACPS
ACTC
Whenever you look for a consultant, look high-end certifications from Apple.
Accept no substitutions!
In addition, look for consultants with multiple certifications of the same type. For example, certified ACSA for 10.3 and 10.4.
This means that the consultant in question has taken the full exam each time, instead of the far easier, "upgrade" exam.
Multiple certifications over different operating systems ensure that your consultant is of the highest caliber!