>Can anyone direct me to some good sample exams for the MS DBA certification? And also the VFP and VB cert exam? If any esits out there....

I'm not positive the new SQL Server 7 exams are included in these, & know the VFP ones are not... but for simulators for M$ Certification exam in general see:

http://www.transcender.com/
http://www.rapidassess.com/

There's other out there, but these two by far are the toughest or closest to the "real thing" rather.