Sammy Krupa sez, "I wrote a guide to installing the developer Intel version of Mac OS X Tiger (Intel) on a generic PC. The amazing thing: I installed and troubleshooted the installation of Mac OS X on Intel in 8 steps."
1. tiger-x86-flat.img Commonly referred to as the "deadmoo" image, it can be found on bittorent sites by searching for "VMWare files for patched Mac OS X Tiger Intel" or "tiger-x86-flat.img" or "tiger-x86.tar.bz2" Find this file! It is the disk image that contains OSX86.
2. There are now ways to install OSX86 on a PC with Windows already on it (linked guides to follow), but I would recommend a new hard drive with at least 8GBs storage.
3. Now, if you will be using the real Mac method you will need to get a hard drive case, if your Mac does not have a spot for a 2nd hard drive. Hard drive cases can be found pretty cheap.
4. If you will not be going the real Mac route, you will find that a lot of the guides ask for you to burn yourself a Linux LiveCD. I would use Ubuntu.
5. Remind myself to delete number 5.