Another Dual Boot question-win 1st Leo 2nd

[RoyCO]

Hello!
i Am a Hackintosh Newbie.
I have win7 installed and want to install LeoPard on differant Hard drive and make dual boot-which is the best way to do it without destorying any data?
Searched the threads but all i could find is Mac first-->win second.
The Leopard edition is Hazarad if that matters...

Does the Leopard installation will write ont eh Win MBR? or do i need to edit the boot.ini and add the Mac location?
Thanks!

Roy