Should not cost anymore to certify in Windows 2003 vs 2000 since the exams are currently the same price if testing thru a VUE test center. Cost for the upgrade exams can be justified by looking at the migrations that will be be performed from all the older NT systems that have not upgraded to 2000 and they require support and all the other items that go along with a new system if they upgrade to 2003. Currently, most companies are looking at performing a migration to 2000 and not 2003 because that is what has been in the planning pipeline for the companies, especially with the delays in the release of the 2003. Since 2000 and 2003 are really close in functions and how they work, the exams for upgrading should be not as difficult as the upgrade was for NT to 2000 MSCE.