Switching from Mac OS X to Vista to Mac OS X again

[SRASC]

I successfully installed Mac OS X 10.4.8 on my new X: drive. Problem is though to get to use it again. Currently to enable the Mac again I would have to:

 

In Vista

-launch DiskPart

-make my OS X partition the active one

-shut down

 

In BIOS area

-restart

-insert Mac OS X 10.4.8 install DVD

-boot from DVD

-wait for it to start (like an install)

-then it would load & run properly to OS X

 

& to re-enable Vista:

 

In Mac OS X

-shut down

 

In BIOS area

-restart

-insert Vista Install DVD

-boot from DVD

-go to Command Prompt

-make Vista partition active

-restart

-then it will load & run properly back to Vista

 

 

Is there a simpler process to switch between Mac OS X & Vista?

 

Thanks.