If you own a legit copy, you may download the patched "Hackintosh" version of OSX to run on a standard x86 processor and follow the
instructions at Lifehacker. From there it's a simple matter of dual-boot partitioning...but remember that Windoze has a big ego and must be on the first partition on the drive. OS X and, of course, Linux are humbler and will live happily on any partition.
Of course, even if you don't own a license, you physically can still download it...but that would be *wrong*, right?
EDIT: About my second comment...I don't know how Cuba would react to such a thing. In the US it's not a big deal to do but in your country I don't know what the government does about that sort of thing. If it's too risky, just get a legit license key and then download the patched version. If any authorities show up, show them your license key.