Want to put Windows on the Hackintosh

Hello, I've successfully put OSX 10 on this machine here, but I installed it alone, on a single partition. I now want to install windows on the machine. I read a few guides one here, but they all seem to assume I am starting with a blank machine and am going to install both operating systems at once. Will I be ok if I simply try and install Windows on a new partition from here, with a fully running OSX partition?

I could be mistaken but I believe you will overwrite your boot loader (Clover or Chameleon) if you install Windows after OSX so make sure you have a working Unibeast USB installer so you can boot back into OSX to reinstall your boot loader.

That being said, and this is just me, but I never install more than one OS per physical drive.

I would prefer to not have more than one OS per drive too, but I can't spend money on another drive just now. Can I reinstall the bootloader with multibeast, then?