Can You Help Me Dual Install Mac OS X On My PC?

OK, I want to make a Hackintosh, but I still want it to run Windows, and I want all of the Windows data to still be intact. I want it to still run Windows with all the same data, because I share the computer with my Mom and brother, and I know my Mom won't ever learn a new OS if she can't even learn the basics of her current one. I want it to still have all my Windows setting and applications, and I can choose to boot either Windows or Mac (similar to the Mac program "Boot Camp"). So I want to dual install Mac OS X on my Windows XP computer, how can I do this? And to just RUN OS X (not run 100% like OS X with the same speed, blah, blah, blah), will I need extra hardware? May I have an easy to understand (easy to understand, not necessarily easy) guide to making this work. Also, if you want to know why I want to do this, it's because 1) I like the Mac, and 2) I want to make iPhone applications, along with 3) Garageband, and other programs that I like that are Apple made (and no, I don't like Fruity Loops Studio, even though it's more professional).