How to install OS X with 7 already installed?
 

I have Windows 7 already installed on my hard drive, and I want to create a new partition for OS X and install it. I have the Hazard ISO on my computer, which I could burn to a disc. Alternatively, I could use the Retail version of Snow Leopard, but I would have to buy this as I can't find a download that works and I don't have any dual layer DVDs.

Also, what would happen if I simply created a new partition and installed OS X Hazard on it without installing Chameleon or another bootloader? Would it wreck my current Windows install? Say if I was to use the Darwin bootloader disc to get the disc booted, would I be able to use the operating system select screen to boot either Windows or OS X, or would I end up corrupting Windows?

Thanks.