You basically can check if other people have been successful with installing MacOSX with certain components (or pre-built pc's or laptops). If your component is not listed, it doesn't mean it's not compatible, it just means that no one has posted a successful install method (there are at least hundreds, if no thousands, of install method combinations. So finding one that works can be extremely difficult)
Long story short, it's not easy, and you have to become somewhat of an expert on the subject, or buy a pre-built computer (ex: a Dell with the exact model number of a successful install method), and follow the install method exactly. Either way, you WILL run into problems, and will have to troubleshoot.